Answer:
Hope this solution helps you
In the table below, x represents miles traveled and y represents the cost to travel by train.
Miles, x
Cost, y
2
8.50
5
15.25
8
22.00
12
31.00
Which linear equation represents the situation?
Answer:
A: y= 2x+8.50
Step-by-step explanation:
Please tell me if I am wrong.
Answer:
It is B
Step-by-step explanation:
I was doing the test and reviewing it and it was right
What is the value of x in the equation 5.5x = 17.6?
3.2
12.1
23.1
96.8
Answer:
3.2
Step-by-step explanation:
rephrase question to isolate the variable x
can do this is by dividing both sides by 5.5
5.5 ÷ 5.5 = 1 so:
x = 17.6 ÷ 5.5
Eli wants to combine 0.5 gallons of a 10% acid solution with a 35% solution to make a 15% acetic acid solution. He needs to determine how many gallons of 35% solution are needed.
Eli decides to let v represent the volume of the 35% solution and makes a table to help solve the problem.
Help Eli by completing the table.
Answer:
Here you go :)
Step-by-step explanation:
0.0125 gallons of 35% solution is needed.
Given that,
Eli wants to combine 0.5 gallons of a 10% acid solution with a 35% solution to make a 15% acetic acid solution.
Eli decides to let v represent the volume of the 35% solution.
We have to find,
How many gallons of 35% solution is needed?
According to the question,
Eli decides to let v represent the volume of the 35% solution.
And 0.5 gallons of 10% acid solution,
the volume of the 15% acid solution is (v +0.5).
Therefore,
0.5 gallons of a 10% acid solution with a 35% solution to make a 15% acetic acid solution.
[tex]\rm = 0.5 \times \dfrac{10}{100} + v \times \dfrac{35}{100} = (v+0.5) \times \dfrac{15}{100}\\\\= 0.5 \times 0.01 + v \times 0.35 = (v+0.5) \times 0.15\\\\= 0.05 + 0.35v = 0.15v + 0.075\\\\= 0.35v - 0.15v = 0.075 -0.05\\\\= 0.20v = 0.025\\\\v = \dfrac{0.025}{0.20}\\\\v = 0.0125[/tex]
Hence, 0.0125 gallons of 35% solution is needed.
For more details refer to the link given below.
https://brainly.com/question/17177510
Find x to the nearest tenth.
B. 14.4
Step-by-step explanation:Hi there !
Angle Bisector Theorem =>
=> 8.3/6.7 = x/11.6
x = 8.3×11.6/6.7
= 96.28/6.7
= 14.37
≈ 14.4
Good luck !
-132 = 11p
I need help please
Answer:
-12
Step-by-step explanation:
-132/11= -12
Answer: p = -12
Step-by-step explanation:
divide by 11 on both sides to isolate p, giving you -12
In 2015 there were 759 laptops at lightning high school starting a 2016 the school box 75 more laptops at the end of each year the function t(x) equals 75X +759 can be used to determine the total number of laptops at the school X years after 2015 what is the projected total number of laptops at lightning high school at the end of 2020
Answer:
Step-by-step explanation:
Given the following :
Number of laptops in 2015 = 759
t(x) = 75x + 759 ; model to determine number of laptops at the school. X years after 2015.
Number of laptops in the school in 2020:
PLEASE HELP ASAP 15 POINTS
Analyze the following equation.
m/16 = 19
Which math step will most efficiently solve the equation?
Multiply both sides of the equation by 16.
Divide both sides of the equation by 16.
Add 16 to both sides of the equation.
Subtract 16 from both sides of the equation.
Answer:
multiply by 16
Step-by-step explanation:
you have to single out the variable m so you would do the opposite
to dividing which is multiplying
The temperature rose 2°C each hour for 6 h. Use integers to find the total change in
temperature
12·C
Step-by-step explanation:
2 * 6 = 12·C
What is the missing term in the factorization?
[tex] 18x ^{2} - 32 = 2(3x + ?) )(3x - 4)[/tex]
Answer: 4 since (3x-4)(3x+4) is a difference of squares
Step-by-step explanation:
how is this pattern changing to get from one term to the next 55,49,43,37,31
Answer:
its changing by 6 if you look the get subtracted or added by six to mae those numbers
Step-by-step explanation:
31 + 6= 37
37 + 6= 43
43 + 6= 49
49 + 6= 55
You spend half of your money on a movie ticket. Then you spend half of what you
have left to buy a large popcom. Then you spend half of what remains to buy a small
drink.
Which expression equals the fraction of money you have left?
Answer:
1/2-1/2-1/2
Step-by-step explanation:
Thank me later
anyone know what these two questions are? the subject is scientific notation
Answer:
1. The negative sign on an exponent means the reciprocal. A negative exponent tells how many times to divide a base number.
2. A positive tells how many times to multiply a base number.
could you also give me a brainliest if I am correct.
thanks!
Solve each problem. Write each answer in simplest form. I. Kayla found a recipe for banana walnut bread that uses 3/4 cup of walnuts. If she wants to make only half of the recipe, how many cups of macadamia nuts should Kayla use?
Answer:
3/8
Step-by-step explanation:
3/4=6/8
find half of that
3/8
select the correct answer. the values in the table define the function f(x). if g(x) is the inverse of f(x) , what id the value of g(1)? X-1 ,1,4,6,7 F(X) -3,-1,1,4,6 A.1 B.2 C.3 D.4 E.5
Answer: D. 4
Step-by-step explanation:
The correct option is Option D: the value of g(1) is 4.
What is the Inverse function?An inverse function is a function which reverses the function direction for which the range of the function becomes the domain and the domain of the function becomes the range of the inverse function.
If y = f(x) is the given function then x = f⁻¹(y) is the inverse function.
Here, given in the question the value of x and the value of f(x).
for which f(-1)= -3
f(1)= -1
f(4)= 1
f(6)= 4
f(7)= 6
So let the value of f(x) is y
we can write y=f(x)
applying inverse on both side
⇒f⁻¹(y)= f⁻¹(f(x))
⇒f⁻¹(y)= x
⇒ x= f⁻¹(y)
given that the inverse of f(x) is g(x)
so now the equation will be
⇒ x= f⁻¹(y)=g)y)
⇒ x= g(y)
according to the above function at the value of y, the inverse of the function will be g(y)= f⁻¹(y)
so from the table it is clear that at the value of x=4, f(x)=y=1.
So at y=1, 1=f(4)
so applying inverse on both side
⇒ f⁻¹(1)= f⁻¹(f(4))
⇒ f⁻¹(1)= 4
⇒g(1)= 4
Therefore the value of the g(1)= 4.
Learn more about inverse function
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In 1985,there were 285 cell phone subscribers in the small town of centerville.The number of subscribers increased by 75% per year after 1985.How many cell phone subscribers were in centerville in 1994?
can someone please help me with this question
please help me out thanks :(
Answer:
Blank 1 : 4 places to the left, you get 4.1 * [tex]10^{4}[/tex]
Blank 2 : The exponent on the ten = 4
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
a function is a relation if and only if the x values do not repeat in a given set. true or false?
Answer:
true
Step-by-step explanation:
when the domain (x-values)is not repeated in the relation
3/4(x+5 1/2) = 5/8
Distributive Property
Brainly
Answer:
x = - [tex]\frac{14}{3}[/tex]
Step-by-step explanation:
Given
[tex]\frac{3}{4}[/tex] (x + 5 [tex]\frac{1}{2}[/tex] ) = [tex]\frac{5}{8}[/tex]
Multiply both sides by 8 to clear the fractions
6(x + 5 [tex]\frac{1}{2}[/tex] ) = 5 ← distribute parenthesis on left side
6x + 33 = 5 ( subtract 33 from both sides )
6x = - 28 ( divide both sides by 6 )
x = [tex]\frac{-28}{6}[/tex] = - [tex]\frac{14}{3}[/tex]
Problem number 26 of the Rhind Papyrus says: Find a quantity such that when it is added to StartFraction 1 Over 4 EndFraction of itself the result is a 15. The modern day equation that models this problem is x plus StartFraction 1 over 4 EndFraction x equals 15.. What is the solution to the equation? x = 10 x = 12 x = 15 x = 30
Answer:
The quantity is 12
Step-by-step explanation:
Here, we want to find the solution to the equation.
Let the quantity we are looking for be x;
According to the question;
The quantity plus a quarter of the quantity = 15
x + 1/4(x) = 15
x + x/4 = 15
Multiply through by 4
4x + (x/4)*4 = 15 * 4
4x + x = 60
5x = 60
x = 60/5
x = 12
Answer:
top one is correct, it is 12!
Step-by-step explanation:
its b on edg. 2020
A fish is 3 feet below the surface of a lake. If its position can be recorded as −3 feet, what would the position of 0 represent
Answer:
On the surface of the lake
Step-by-step explanation:
A position of 0 represent that the object is on the surface of the lake. Negative 3 represents 3 feet below the surface of the lake.
Hope this helps.
Please mark me brainliest
Answer: you can mark the other guy as brainliest now
Step-by-step explanation:
PLEASE HELPP :( ,,, What is the value of x?
(4x - 25)
(2x - 1)
A 11
C 23
B 12
D 46
Answer:
C it's just c trust me sooooooo
The value of x is 12.
What is vertically opposite angle?Angles that are vertically opposed to one another at a certain vertex are formed by two straight lines intersecting. Angles that are vertically opposed to one another are equal.
The two angle are (4x - 25)° and (2x - 1)°,
Since, both the angles are vertically opposite angle,
Therefore, by the vertically opposite angle property,
Both the angles will be equal.
4x - 25 = 2x - 1
2x = 24
x = 12
The value of x is 12.
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x + y = 180. what is domain and range
Answer:
[tex]Domain: \left \{ -\infty<x<\infty \\\right\}[/tex]
[tex]Range:\left\{-\infty<f(x)<\infty\right\}[/tex]
Step-by-step explanation:
[tex]x+y=180[/tex]
First, let's put this equation into slope-intercept form by subtracting [tex]x[/tex] from both sides of the equation:
[tex]y=-x+180[/tex]
Let's graph this (see the attached photo.)
As you see we have a straight line. If you are able to graph a straight line, the domain and range will be all real numbers. This can be represented as:
[tex]Domain: \left \{ -\infty<x<\infty \\\right\}[/tex]
- or -
[tex]Domain:(-\infty,\infty)[/tex]
~
[tex]Range:\left\{-\infty<f(x)<\infty\right\}[/tex]
- or -
[tex]Range:(-\infty,\infty)[/tex]
three times the difference of a number and four is equal to 5
Please help!!
Simplify. √4x/y^3
D.2y square root x/square root y
The money used in Mexico is called the Peso. The exchange rate is $10 for 222 pesos. How many pesos will you receive if you exchange $25?
Answer:
555
Step-by-step explanation:
two ways.
25/10=2.5 so 222x2.5=555
or
(222/10)x25=555
Answer:
555 pesos
Explain:
222+222 (20$)
222:2= 111
444+111= 555 pesos
PLSSSSSS!!!! HELP ME I WILL MARK YOU!!!!!!!!!!
Answer:
2.25
Step-by-step explanation: Replace the z with the value given (-18) and then multiply that by 1.1 you can then add it to 21.3 and then do the exponent
Answer:
2.25? i think thats right........
Please help and put it in a fraction
Answer:
1/2
Step-by-step explanation:
sorry it took so long.
Answer:
H25
Step-by-step explanation:
Which is used to determine if a relation is a function
1. 3D line test
2.diagonal line test
3.horizontal line test
4.vertical line test
Answer:
i picked d because
Step-by-step explanation:
The vertical line test can be used to determine whether a graph represents a function. If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because a function has only one output value for each input value.