Answer:
money
Step-by-step explanation:
m
The 7 dwarfs go to work whistling in a different order each day. How many days can they go without repeating an order?
Answer:
My thought is 7, but I may be very well wrong.
Step-by-step explanation:
tim ate 100 cookies in 5 days. each day he ate 6 more cookies than he did the day before. how many cookies did he eat on the first day?
Answer:
8
Step-by-step explanation:
Day 1) 8
Day 2) 8+6 =14
Day 3) 14+6=20
Day 4) 20+ 6=26
Day 5) 26+6=32
8+14+20+26+32=100
WILL GIVE BRAINLEST IF RIGHT
Select all the expressions which are equivalent to –3(0.15 – 0.2 + 0.25p).
A. –0.45 – 0.6 + 0.25p
B. 0.15 – 0.75p
C. 3(0.15 + 0.2 + 0.25p)
D. –3(–0.05 + 0.25p)
E. –3(0.05 + 0.25p)
–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p
Equation
An equation is an expression used to show the relationship between two or more numbers and variables.
Given that:
–3(0.15 – 0.2 + 0.25p)
simplifying the expression:
= –3(-0.05 + 0.25p)
Further simplification gives:
= 0.15 – 0.75p
–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p
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Answer: –3(–0.05 + 0.25p)
Step-by-step explanation:
The value of expression when 5x²- 2 when x=3 is
Answer:
43
Step-by-step explanation:
Substitute x = 3 into the expression, that is
5(3)² - 2 = 5(9) - 2 = 45 - 2 = 43
Zane took three typing tests and recorded the results as shown.
Test
Number of
Words
Time
(minutes)
3
4
D
30
B
78
15
22
С
99
What was Zane's unit rate, in words per minute, on each test?
On which test does Zane have the highest unit rate?
Numbers aren't arranged properly so I'll try and do this. Please follow method as answer might differ cause of this
Test Number of Words Time(minutes)
A. 30. 4
B. 78. 15
C. 99. 22
Answer:
Step-by-step explanation:
To calculate Zane's unit rate/number of words per minute for which each test, we divide number of words in each test by time taken for that test
For test A, unit rate = 30 words/ 4 minutes = 7.5 words per minute
For test B, unit rate = 78 words/15 minutes = 5.2 words per minute
For test C, unit rate = 99 words/22 minutes= 4.5 words per minute
From the above Zane has the highest unit rate in test A and is therefore fastest in test A
(picture included) brainliest
Answer:
A. y = -1/4x + 1 1/2
B. The rate of change is losing/decreasing -1/4 (y axis unit) per (x axis unit)
Step-by-step explanation:
A. Your equation is 2x + 8y = 12
so solve this for y like any other other question. Start by subtracting 2x from both sides: 8y = -2x + 12
then divide both sides by 8 to isolate y: y = -2/8x + 12/8
simplify your equation: y = -1/4x + 3/2
turn 3/2 into a mixed fraction: y = -1/4x + 1 1/2
B. The rate of change is the same thing as the slope but you say it with units. I cant see a scenario but you can say something like:
The rate of change is losing/decreasing -1/4 (y axis unit) per (x axis unit)
a man buys a car for 80000 Rs 20,000 more for repairing he sells it for rupees 125000 find its gain
Drag the tiles to the correct boxes to complete the pairs.
Match each graph with a description of its correlation.
Tiles:
modest negative correlation
weak negative correlation
perfect negative correlation
modest positive correlation
strong positive correlation.
Answer:
Graph 1: perfect negative correlation
Graph 2: modest negative correlation
Graph 3: modest positive correlation
Graph 4: strong positive correlation
Graph 5. weak negative correlation
Step-by-step explanation:
If i'm wrong PLEASE correct me
The graph first is perfect negative correlation, graph second is the modest negative correlation.
What is correlation?It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.
[tex]\rm r = \dfrac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{{[n\sum x^2- (\sum x)^2]}}\sqrt{[n\sum y^2- (\sum y)^2]}}[/tex]
As we know, the coefficient of correlation varies between -1 and +1.
If r = +1 (means the relation between the variable is strong and positive)
If r = -1 (means the relation between the variable is strong but negative)
As we can see in the graph, the line goes down represents the negative correlation and the line goes up represents the positive correlation.
So, we can say:
The first graph is perfect negative correlation.
The second graph is modest negative correlation.
The third graph is modest positive correlation.
The fourth graph is strong positive correlation.
The fifth graph is weak negative correlation.
Thus, the graph first is perfect negative correlation, graph second is the modest negative correlation.
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plz help i will report if your not trying to answer
Answer:
number 5 is 1.24 x 10 (3)
number 6 is 1.53 x 10 (-4)
hoped that helped:)
Step-by-step explanation:
what is 4/5 times 4?
Answer:
3.2
Step-by-step explanation:
Which of the terms given can you write in the blank box so that the
equation will have infinitely many solutions?
4x – 36=(blank) (x-9)
Help pleaseeee I’ll give 5 stars and the brain thing please
Answer:60 is the answer hope that helps
Step-by-step explanation:
Subtract. Write your answer in the box below.
(22 -6x +9)-2(22-3x+1)
Answer:
-15
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
(22 - 6x + 9) - 2(22 - 3x + 1)
Step 2: Simplify
Distribute -2: 22 - 6x + 9 - 44 + 6x - 2Combine like terms (x): 22 + 9 - 44 - 2Combine like terms (Z): -15Answer:
-15
Step-by-step explanation:
If you help you get a brąïńlīėšt
Answer:
$200
Step-by-step explanation:
120/3=40
So they spent $40 on each ticket.
40*5=200
They would spend $200 on five tickets.
Please help this is due tomorrow
Answer:
A.6-5 B. 5-15 C.5-5 D.23-14 E.1-12 F. 15-2
1-4 14-1 9-8 5 - 1 3-10 10-2
G. (-)5-11 H.20-0 I. (-)3-11
1-15 20-0 0-1
Step-by-step explanation:
ex a. top left cant be lower than 1 or 5 (so I put 6)
The top right can't be lower than 1
The bottom left can't be lower than -3
pls solve this question step by step.
Answer:
Mother is 29 and son is 5==========================
Let the mother's present age is m and son's present age is s.
Set equations as per given conditions3 years later
m + 3 = 4(s + 3) ⇒ m + 3 = 4s + 12 ⇒ m = 4s + 93 years ago
m - 3 = 2(s + 8) ⇒ m - 3 = 2s + 16 ⇒ m = 2s + 19Compare the equations and solve for s4s + 9 = 2s + 194s - 2s = 19 - 92s = 10s = 5Find mm = 4*5 + 9 = 29To solve the system of equations below, Lisa isolated the variable y in the first
equation and then substituted it into the second equation. What was the
resulting equation?
[2y = 6x
[x² + y = 28
OA. x²-3x = 28
B. x² + 3x = 28
OC. 9x² + 3x = 28
OD. 4x² = 28
C
The resulting equation after substitution in system of equations :2y = 6x , x² + y = 28 will be option B : x^2 + 3x = 28
What is Algebraic expression ?
Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.
The given system of equation are :
2y = 6x.....(1)
[x² + y = 28.........(2)
also, Lisa isolated the variable y in the first equation and then substituted it into the second equation that is :
she substitute y = 3x in second equation :
x^2 + y =28
x^2 + 3x = 28
Therefore, the resulting equation after substitution will be option B : x^2 + 3x = 28
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Lines a, b, and c lie on the same coordinate plane. Line a is perpendicular to line b and intersects at (3, 6). Line b is perpendicular to line c, which is the graph of y = 2x + 3.
Write the equations of lines a and b.
Answer:
The answer is below
Step-by-step explanation:
The equation of a straight line is given as y = mx + b, where m is the slope and b is the y intercept.
Given that the equation of line c is y = 2x + 3, and line b is perpendicular to line c. Two lines are perpendicular if the product of their slope is -1. We can see that the slope of line c is 2, let [tex]m_1[/tex] be the slope of line c, hence:
[tex]2*m_1=-1\\\\m_1=\frac{-1}{2}[/tex]
Also, line b passes through (3, 6), hence the equation of line b is:
[tex]y-y_1=m_1(x-x_1)\\\\y-6=\frac{-1}{2}(x-3)\\\\y-6= \frac{-1}{2}x+\frac{3}{2}\\\\y=\frac{-1}{2}x+ \frac{15}{2}[/tex]
Line b has a slope of -1/2, and is perpendicular to line a, let [tex]m_2[/tex] be the slope of line a, hence:
[tex]\frac{-1}{2} *m_2=-1\\\\m_2=2[/tex]
Also, line a passes through (3, 6), hence the equation of line a is:
[tex]y-y_1=m_1(x-x_1)\\\\y-6=2(x-3)\\\\y-6=2x-6\\\\y=2x[/tex]
algebra 1
what are the answers for these :
1. Y is greater than 3 times x -4
2. Y is less than 2 times x + 5
3. Y is greater than or equal to -2 times x minus 6
i need help bad please and thank you !
Answer:
1.3x-4∠Y
2.y∠2x+5
3.y≥-2x-6
A farmer has 280 acres of land on which he plans to plant two different crops, crop A and crop B. For each acre of crop A he plants, his expenses are $25, and for each acre of crop B, his expenses are $30. The farmer has a limit of $10,000 for the expenses of planting the 280 acres. If a represents the acres of crop A and b represents the acre of crop B that the farmer plants, which of these represent the limits of a and b?
Answer:
a+b<280
25a+30b less than or equal too 10000
Step-by-step explanation:
Answer:
Step - by - step explanation.
Solve for s
2s = 6t+8w
Answer:
s = 3t + 4w
Step-by-step explanation:
2s = 6t + 8w
s = 3t + 4w
Answer:
s = 3t+4w
Step-by-step explanation:
2s = 6t+8w
s = (6t+8w) ÷ 2
(6t÷2=3t, 8w÷2=4w)
s = 3t + 4w
Write an equation in point slope form of the line that passes through the point (2,-8) and had a slope of 4
The equation of a line in point-slope form is (y + 8) = 4(x - 2).
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, A line passes through the point (x₁, y₁) ⇒ (2,-8) and had a slope of 4.
We know the equation of a line in point-slope form is (y - y₁) = m(x - x₁).
∴ The equation of this line is (y + 8) = 4(x - 2).
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a trip to washington from boston will take you 534 hours. if you have traveled 13 of the way, how much longer will the trip take?
There are 356 hrs left to the trip.
534 hours are required to go from Washington to Boston [tex]dfrac13[/tex] of the trip is already finished. The time remaining to complete the journey would then be [tex]dfrac23[/tex]of the way. To get the number of hours left to the trip is shown below:
[tex]534 hours[/tex] ×[tex]2/3[/tex] [tex]=\frac{534}{3}[/tex]
[tex]= (178)(3)(2)/3[/tex]
[tex]=356 hrs[/tex]
Is Boston near Washington, DC?Boston, Massachusetts is roughly 450 miles southwest of Washington. There are numerous ways to travel from Boston to Washington, DC due to the proximity of the two cities, including via rail, airline, bus, and vehicle.
Your best option for getting from Boston to Washington, DC will depend on your individual needs, including how much time you want to spend on the road, your financial situation, and the specific points of origin and destination in each city. Flying will get you there the quickest, and because there are so many direct flights, it can also be relatively economical.
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Help!! I am going to fail my class!!! I will mark you brainiest!
Between 1970 and 2000, the population of a city decreased by approximately 2% each year. In 1970 there were 600,000 people. What was the population in 2000? Write an exponential decay function and solve showing your work.
Answer:
600,000(.90) 327,290
Step-by-step explanation:
help its easy im just to lazy :)
Ill make you brainlist help
Answer:
ROC = 0
Step-by-step explanation:
Even though the x-values are changing, the y-values say the same; no change
Find the unit rate. Round to the nearest hundredth, If necessary.
$290 for 12ft
Answer:
24.17
Step-by-step explanation:
Answer:
$24.17 per feet
Step-by-step explanation:
290/12=24.1666...
24.16666 rounds to 24.17
PLEASE HELP! EASY MATH! GIVING BRAINLIEST!
Molly is painting a model house and needs to know how much paint she will need. She knows the surface area of the prism is 216 square inches and the surface area of the pyramid is 84 square inches.
1. Which surface is shared by the two solids? What are the dimensions of this surface?
2.There is another surface that Molly does not need to paint, because it wont show when she displays the model house. Describe that surface, and explain why it doesn't need to be painted.
3. To find the area Molly needs to paint, she should add the surface areas of both solids and subtract. Choose the correct answer.
A. twice the area of the triangle
B. twice the area of the square
C. three times the area of the square
D. the area of the square.
4. Find the area Molly needs to paint.
Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid
Part 2) The dimensions of this surface are 6 in x 6 in
Part 3) Molly needs to paint 228 square inches
Step-by-step explanation:
The picture of the question in the attached figure
Part 1) Which surface is shared by the two solids?
we know that
The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid
Part 2) What are the dimensions of this surface?
The surface is a square with side length 6 inches
so
The dimensions of this surface are 6 in x 6 in
Part 3) what is the area molly needs to paint?
we know that
The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids
so
therefore
Molly needs to paint 228 square inches
i hope this helps you
A health insurance plan has a $50 enrollment fee and a copayment of $5 for each doctor visit. The function f(x)=5x+50 gives the cost of x doctor visits. What is the cost for visiting the doctor 3 times?
Answer:
65 dollars
Step-by-step explanation:
Plug in the 3 as the x in the equation and solve.
f(x)=5(3)+50
f(x)=15+50
f(x)=65
And that's how you get the answer
Can you go step by step on this please, I need to write down notes for my math class.
Answer:
x = 32, y = 51
Step-by-step explanation:
You know the longest side of ΔTUS is 13m and the longest side of ΔMNP is (2x-y). Thus:
2x - y = 13 --- Equation 1
You know the sum of angles in a triangle is 360°. Two of the angles are given in ΔMNP (142° & 24°) and the remaining angle is (2x-50)°. Thus:
142 + 24 + 2x - 50 = 180
2x + 116 = 180
2x = 180 - 116
2x = 64
x = 64 ÷ 2
x = 32 --- Equation 2
Substitute x = 32 into Equation 1:
2(32) - y = 13
64 - y = 13
-y = 13 - 64
= -51
y = 51 --- Equation 3
Answer:
x = 32, y = 51
Step-by-step explanation:
Since the triangles are congruent then corresponding angles and sides are congruent, then
∠ U = ∠ N and NP = US
Require to find ∠ N
∠ N = 180° - (24 + 142)° ← sum of angles in triangle
= 180° - 166°
= 14°
Thus
2x - 50 = 14 ( add 50 to both sides )
2x = 64 ( divide both sides by 2 )
x = 32
and
NP = US
2x - y = 13 ← substitute x = 32
2(32) - y = 13
64 - y = 13 ( subtract 64 from both sides )
- y = - 51 ( multiply both sides by - 1 )
y = 51