Answer: a) the dependent variable is y, the amount he earns depending on x, the independent variable. x is the number of hours.
b) y = 5x + 10
c) Bobby earns $27.50 for the 3.5 hour job
Step-by-step explanation: use the function y=5x + 10 substitute 3.5 for x
y = 5(3.5) + 10
y = 17.5 + 10
y= 27.5
Rico owns a sporting goods store. He has agreed to donate $125 to the Centipede Valley High School baseball team for their equipment fund. In in addition, he will donate $18 for every home run the Centipedes hit during the season. The sequence shown represents the possible dollar amounts that Rico could donate for the season. 125, 143, 161, 179,
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete but it can still be solved.
To answer this question, I'll solve for the general formula which to determine Rico's donations
The given sequence shows an Arithmetic sequence; such that
[tex]First\ Term = T_1 = 125[/tex]
[tex]Common\ Difference = d = 143 - 125[/tex]
[tex]d = 18[/tex]
The general formula (Tn) is as follows:
[tex]T_n = T_1 +(n - 1)d[/tex]
Substitute values for T1 and d
[tex]T_n = 125 +(n - 1) * 18[/tex]
Open Bracket
[tex]T_n = 125 +18n - 18[/tex]
Collect Like Terms
[tex]T_n = 125 - 18+18n[/tex]
[tex]T_n = 107+18n[/tex]
If Good C increases in price by 30 % a pound, and this causes the quantity demanded for Good D to increase by 40% , what is the cross-price elasticity of the two goods? Round your answer to one decimal place. What is the relationship between the two goods? Complements no relationship substitutes
Answer:
1.3
Substitutes
Step-by-step explanation:
Cross price elasticity,Edc = percentage change in Quantity demanded of D / percentage change in Price of C
Good C increases in price by 30 % a pound
Good D to increase by 40%
Cross price elasticity, Exy = percentage change in Quantity demanded of D / percentage change in Price of C
= 40% / 30%
= 1.333
To one decimal place = 1.3
When Edc > 0, Quanrity demand of good D and Price of good C
are directly related. D and C are substitutes
The goods are substitute
What is the y-coordinate of the vertex?
Y=2(x-3)( x-9)
Answer:
-18
Step-by-step explanation:
First, to find the y coordinate of the vertex, we need to find the x coordinate of the vertex.
The vertex will always be in the middle of the roots of the quadratic. The roots of the polynomial are 3 and 9, so the x coordinate of the vertex will be (3+9)/2 = 6.
Now that we know the x coordinate of the vertex, we can just plug in 6 for x to find the y coordinate:
2(6-3)(6-9)
=2(3)(-3)
=-18
Evaluate 3√-8. Use pencil and paper. Explain how you can check that your result is correct. Show your work.
Answer:
?, the value does not exist because you can't square root a negative value.
Step-by-step explanation:
root 8 can be simplified but in this case, its negative so answer D.N.E.
= 3 x √-8
= D.N.E.
Answer:-2
-2 times -2 times -2 = -8
how many solutions does 3x-1=3 have?
Answer:
one solution
Step-by-step explanation:
3x-1=3
Add 1 to each side
3x-1+1=3+1
3x = 4
Divide by 3
3x/3 = 4/3
x = 4/3
There is one solution
Answer:
One solution
Step-by-step explanation:
3x=4
x=4/3
no other answer
Adrianna runs up 4.5 flights of stairs. How far will Arianna have to run down to represent an additive inverse?
Answer:
She needs to run down 4.5 flights of stairs to represent an additive inverse
Step-by-step explanation:
Having an additive inverse means that she will be back at point zero.
The point zero in this context simply refer to her starting point.
So if she has run up 4.5 flights of stairs, then to be back at her starting point, she needs to run down also 4.5 flights of stairs
The revenue for a company producing widgets is given by y = -20x2 - 50x + 200, where x is the price in dollars for each widget. The cost for the production is given by y = 30x - 10. Determine the price that will allow the production of widget to break even.
Answer:
The price is x = $2.779
Step-by-step explanation:
From the question we are told that
The revenue is [tex]y = - 20x^2 - 50 x + 200[/tex]
The cost of production is [tex]y = 30 x - 10[/tex]
Generally at break even point the cost of production is equal to the revenue
So
[tex]-20x^2 -50x + 200 = 30x-10[/tex]
=> [tex]20x^2 +20 -210 = 0[/tex]
Using the quadratic formula to solve this equation we have that
x = $2.779
Answer:
1.81 per widget
Step-by-step explanation:
If you put in the equations in Desmos, you can see where is breaks even
A recipe indicates 2 carrot cakes will feed 9 people. There are 45
students at a party. How many carrot cakes are necessary to feed the
students?
Answer:
10
Step-by-step explanation:
its 10 so there
Simplify 5(3x+4) Please and thank you!
Answer:
15x+20
Step-by-step explanation:
you multiply 3x×5 and you get 15 and then you multiply 5×4 and you get 20
Please help‼️
Find the product. Simplify your answer.
-3n-(-3n2-5)
Answer:
-3n-3n2+5
Step-by-step explanation:
You can use Keep Change Change in order to simplify the problem
A 2-column table with 8 rows. The first column is labeled x with entries negative 3, negative 2, negative 1, 0, 1, 2, 3, 4. The second column is labeled f of x with entries negative 2, 0, 2, 2, 0, negative 8, negative 10, negative 20.
Which could be the entire interval over which the function, f(x), is positive?
(–∞, 1)
(–2, 1)
(–∞, 0)
(1, 4)
Answer:
a
Step-by-step explanation:
What is the definition of a pandemic? How does a pandemic differ from an endemic or epidemic? What is the life cycle of the HIV virus once it enters the body? How does the genetic code of the virus change? How does HIV affect the body? How do people become infected with HIV? How does AIDS develop from an HIV infection? What are the current infection rates of HIV across the globe? Where is HIV/AIDS most prevalent? What treatments are currently available for HIV/AIDS? Do some regions of the world have better access to treatments than others? What is the average life expectancy for someone with HIV? Does life expectancy differ around the globe?
Answer:
HIV (human immunodeficiency virus) is a virus that attacks the body’s immune system. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome). Learning the basics about HIV can keep you healthy and prevent HIV transmission. You can also download materials to share or watch videos on basic information about HIV.
What is HIV?
HIV Overview
HIV (human immunodeficiency virus) is a virus that attacks the body’s immune system. If HIV is not treated, it can lead to AIDS (acquired immunodeficiency syndrome).
There is currently no effective cure. Once people get HIV, they have it for life.
But with proper medical care, HIV can be controlled. People with HIV who get effective HIV treatment can live long, healthy lives and protect their partners.
Where did HIV come from?
History of HIV
HIV infection in humans came from a type of chimpanzee in Central Africa.
The chimpanzee version of the virus (called simian immunodeficiency virus, or SIV) was probably passed to humans when humans hunted these chimpanzees for meat and came in contact with their infected blood.
Studies show that HIV may have jumped from chimpanzees to humans as far back as the late 1800s.
Over decades, HIV slowly spread across Africa and later into other parts of the world. We know that the virus has existed in the United States since at least the mid to late 1970s.
To learn more about the history of HIV in the United States and CDC’s response to the epidemic, see CDC’s HIV and AIDS Timeline.
Step-by-step explanation:
Giving brainliest to the correct awnser
What is the next number in the sequence below?6, 10, 14, 18, ?A.32B.24C.22D.28
Answer:
22
Step-by-step explanation:
we have the sequence
6 10 14 18
well we can see that from 6 to 10 we add 4
and from 10 to 14 we continue to add 4
and that pattern applies to the next
so we can conclude that to 18 we need to add 4 to get the next one
18 + 4 = 22
so the next number is 22
HELP NEEDED ASAP!
(In the diagram shown, assume each square on the grid is 1 centimeter in length.)
What is the area, in square meters, of the actual park?
What is the scale factor?
Answer:
30 square feet
Step-by-step explanation:
scale F = 43.744532
If 2x−5 = 13, then x=4 true or false
Answer:
False
Step-by-step explanation:
13+5=18
2*4=8
8-5=3
The given solution x=4 is false for 2x-5 = 13.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
2x−5 = 13
Now, for x=4
2(4)- 5
= 8-5
= 3
As, the LHS part of equation is not equal to RHS part.
Hence, the given x=4 is false for 2x-5 = 13
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Use the property to complete the statement.
1. Transitive property of Equality: If a=bc and bc=de, then...
2. Substitution Property of Equality: If x = 3c and r = 5x + 7, then..
Answer:
The answer is b and r=5x+7 is 35x
Step-by-step explanation:
need help solving matrices answer ASAP
Step-by-step explanation:
Distribute the 6 to the first matrix and add the result of the first matrix to the second matrix
Miriam has 3 packs of pencils. Each pack has 6 pencils. She needs a pencil top eraser for each pencil. How many erasers will she need to buy?
3 times 6 is 18, and each pencil needs a top, so 18 pencil top erasers.
5 + 4n = 29
How do I do this
how to convert 40m/min to km/h?
Answer:
2.4 kilometres per hour
Step-by-step explanation:
y=6x-11
2x-3y=7
solve the system of eqations
Answer:
(13/8, -5/4)
Step-by-step explanation:
substitute the value of y
{y=6x-11
2x-3y=7
solve the equation
2x-3(6x-11)=7
Substitute the value of x
x=13/8
Solve the equation
y=6x13/8-11
A possible solution is
y=-5/4
Check the solution
(x,y)=(13/8, -5/4)
Simplify
{-5/4=6x13/8-11
2x13/8-3x(-5/4)=7
The ordered pair is a solution
{-5/4=-5/4
7=7
Solution
(13/8, -5/4)
helppppppppppppp me...............
Answer:
B.
Step-by-step explanation:
Change the denominators to a common one, then change the numerators accordingly. You can also use math///w4y
Hello, 30 POINTS + BRAINLIEST If correct and has a long explanation. I looked at the same thing in other places but I think those people misread some parts. I will put a parenthesis around the parts you should read carefully. Thank you so much!
Please take notice that it says how long it took him to practice EACH SWIMMING EVENT and not how long he practiced every day. Thank you so so much!
_______________________________________________________
Trayvon recorded the number of minutes he spent practicing each (swimming event) over three days. He recorded his times in the table below.
Trayvon’s Swim Practice Times
Monday Wednesday Friday
Backstroke 12.5 min 15.67 min 9.32 min
Butterfly 14.333 min 12.1 min 10.78 min
Which statement explains how to find the event Trayvon spent more time practicing?
A Compare the sum 12.50 + 15.67 + 9.32 = 37.49 to the sum 14.333 + 12.100 + 10.780 = 37.213; he spent more time practicing the backstroke than the butterfly.
B Compare the sum 12.05 + 15.67 + 9.32 = 37.04 to the sum 14.333 + 12.001 + 10.078 = 36.412; he spent more time practicing the backstroke than the butterfly.
C Compare the sum 12.500 + 14.333 = 26.833 to the sum 15.67 + 12.10 = 27.77 and to the sum 9.32 + 10.78 = 20.1; he spent more time practicing on Wednesday than on the other days.
D Compare the sum 12.005 + 14.333 = 26.338 to the sum 15.67 + 12.01 = 27.68 and to the sum 9.32 + 10.78 = 20.1; he spent more time practicing on Wednesday than on the other days.
Answer:
A
Step-by-step explanation:
We have a table listing the number of minutes Trayvon practiced the Backstroke and Butterfly on Monday, Wednesday, and Friday.
We want to find event that Trayvon spent more time practicing.
To do so, we add up all the minutes of one event and compare this to the total minutes of the other event.
Therefore, we can eliminate options C and D. These two options evaluate the time on Wednesday compared to other days, but we want to do is to find which event did Trayvon spend the longest on.
So, let's add up all the minutes spent doing the Backstroke. Trayvon over the course of the three days spent 12.5 mins, 15.67 mins, and 9.32 mins.
Therefore, the total minutes Trayvon spend practicing the Backstroke is:
[tex]12.5+15.67+9.32=37.49\text{ mins}[/tex]
Now, let's add up all the minutes spent doing the Butterfly. Trayvon spent 14.333 mins, 12.1 mins, and 10.78 mins over the course of three days. So, the total time spent doing the Butterfly is:
[tex]14.333+12.1+10.78=37.213\text{ mins}[/tex]
Trayvon spent a total of 37.49 minutes doing the Backstroke and 37.213 minutes doing the Butterfly.
37.49 is greater than 37.213. So, Trayvon spent more time practicing the Backstroke.
So, our correct answer is A.
There are some number and calculation errors in B.
And we're done!
Answer:
C
Step-by-step explanation:
On Monday he spent 12.5 min on backstroke and 14.33 min on butterfly.
He spent 26.83 min practicing at the Monday event.
On Wednesday: 15.67 min on backstroke and 12.1 min on butterfly.
He spent 27.77 min on practicing at the Wednesday event.
On Friday: 2.32 min on backstroke and 10.78 min on butterfly.
He spent 13.1 on practicing at the Friday event.
So, he spent more time at the Wednesday event.
Jacque needs to buy some pizzas for a party at her office. She's ordering from a restaurant that charges a \$7.50$7.50dollar sign, 7, point, 50 delivery fee and \$14$14dollar sign, 14 per pizza. She wants to buy as many pizzas as she can, and she also needs to keep the delivery fee plus the cost of the pizzas under \$60$60dollar sign, 60. Each pizza is cut into 888 slices, and she wonders how many total slices she can afford. Let P represent the number of pizzas that Jacque buys. ------------------------------------------------------------------------------------ 2) What is the largest number of slices that Jacque can afford?
Answer:
3 pizzas
24 slices.
Step-by-step explanation:
Given:
Delivery fee = $7.50
Charges per pizza = $14
Total money available with Jacque = $60
Number of slices in one pizza = 8
To find:
The number of pizzas, [tex]P[/tex] that Jacque can buy and
The number of slices, that Jacque can afford.
Solution:
Cost of one pizza = $14
Cost of [tex]P[/tex] pizzas = $14 [tex]\times P[/tex]
Out of total money of $60, $7.50 will be used as delivery charge.
Therefore, money that can be used for buying pizza = $60 - $7.50 = $52.50
Now, the money available must be greater than or equal to the cost of [tex]P[/tex] pizzas:
i.e. $52.50 [tex]\geq[/tex] [tex]\$14P[/tex]
[tex]\Rightarrow P = 3[/tex]
A maximum of 3 pizzas can be bought.
Number of slices that Jacque can afford = 3 [tex]\times[/tex] 8 = 24 slices
Suppose x and y are the number of
students in two classrooms, where x < y.
Compare the expressions using <=, or >
(2x^2) [_?_] (x + y)^2
Answer:
Step-by-step explanation:
G
Determine the simplified expression used to represent the perimeter of the rectangle.
HELP I TEST IS ABOUT TO END
-2x+14
30
Lisa is traveling down the highway at 60 miles per hour. Which expression shows the distance she will have traveled after h hours?
A.
60 + h
B.
60 × h
C.
60 - h
D.
60 ÷ h
Answer:
B.
60 x h
Step-by-step explanation:
Because in she can 60 mph so for every hour she can drive 60 miles. And to find out the total miles she can drive in h hours we would have to multiply
eleven more than a number squared, decreased
by six;
evaluate when t = 5
A 2-column table with 6 rows. Column 1 is labeled Key Words with entries eleven, more than, a number, squared, decreased by, six. Column 2 is labeled Replace With entries 11, +, t, exponent of 2, minus, 6.
Write and evaluate the expression.Check all that apply.
Write the expression as 11 +t2 -6
Write the expression as 11 +2t -6
Write the expression as 11 +StartFraction t Over 2 EndFraction -6
The value when t = 5 is 16.
The value when t = 5 is 30.
The value when t = 5 is 7.5.
Answer: the answer is A and E
Step-by-step explanation:
Answer:
A and E
Step-by-step explanation:
if 1/2 gallon of paint covers 1/8 of a wall, then how much paint is needed for the entire wall
4 gallons
If half covers an eighth, then you need half a total if 8 times. So multiply half by 8 and you get 4.
If this helped please mark branliest
The cost of a pack of pencils is $3 while the cost of a pack of pens is $5.
What will the cost be if you buy 4 packs of pencils and 4 packs of pen?
Answer:
The total cost would be $32
$12 for the pencils
$20 for the pens
The total cost if you buy 4 packs of pencils and 4 packs of pen at $3 and $5 respectively is $32.
Given the following data:
Cost of a pack of pencils = $3Cost of a pack of pen = $5Number of packs of pencils = 4 packsNumber of packs of pen = 4 packsTo determine the total cost if you buy 4 packs of pencils and 4 packs of pen:
First of all, we would determine the cost of 4 packs of pencils:
[tex]4 \;packs = 3 \times 4[/tex]
Four (4) packs of pencils = $12
For pen:
[tex]4 \;packs = 5 \times 4[/tex]
Four (4) packs of pen = $20
For total cost:
[tex]Total \;cost =12+ 20[/tex]
Total cost = $32
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