A CD player that regularly sells for $79.00, but is on sale for $67.15. What percent off is the sale price?

Answer:

The answer is one pair of socks = $10

Step-by-step explanation:

I subtracted 42 by 12 and got 30. I then divided 30 and 3 and got 10.

42-12=30

30/3=10

Or you can subtract 12 from both sides to get the variable on one side. Then you divide the variable by the coefficient (3) and divide 30 by 3 to get 10.

Answer:

The aswer will be d bc i am learing about this .

Step-by-step explanation:

Hope this helps

Answer:

3x + 16/3

Step-by-step explanation:

3(x +1) + 2 1/3 (distribute 3 into parentheses)

3x + 3 + 2 1/3 (calculate)

3x + 5 1/3 (convert to improper fraction)

3x + 16/3 (done)

3x + 16/3

Answer:

3x + 16/3

Step-by-step explanation:3(x +1) + 2 1/3 (distribute 3 into parentheses)

3x + 3 + 2 1/3 (calculate)

3x + 5 1/3 (convert to improper fraction)

3x + 16/3

3x + 16/3

Answer:

y=x-11

Step-by-step explanation:

5y+22=5x-33

5y=5x-33-22

5y=5x-55

y=x-11

Answer:

Step-by-step explanation:

First collocate the equation

5y+55=5x

Divide the equation 5

y+11=x

y=x-11

Answer:

40

Step-by-step explanation:

10 x 4 = 40

so if it was 1/2 instead of 1/4 than it would be 20

Answer:

40

Step-by-step explanation:

[tex]Let\ the\ number\ be\ x\\Hence,\\From\ the\ information\ we\ may\ frame\ the\ following\ equation\ :\\\frac{x}{4}=10\\x=4*10\\x=40\\Hence,\ the\ number\ is\ 40 .[/tex]

Answer:

y=√2x is the answer.....

Answer:

y = -3/2x + 3

Step-by-step explanation:

y = 3/2x + 3

================================================================

If you need it in decimal form ~

y = 1.5x + 3

================================================================

~Have a marvelous day~

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Answer:

117

Step-by-step explanation:

1,100 - 160 = 940

940 ÷ 8 = 117.5

you round down to 117

Answer: 1/3

Step-by-step explanation:

Answer:

it 1/12

Step-by-step explanation:

Step-by-step explanation:

f(x) = -4x^2+24x-29

= -4(x^2-6x)-29

= -4(x-3)^2 -4(-9) -29

= -4(x-3)^2 +36-29

= -4(x-3)^2 +7

maximum height = 7m

h(x) = -4 + 6

h(x) = 2

h(-2) = 2 because It's a constant function, when you substitute any x-values, you still get the same y-value.

Even if you substitute x = 1000, you still get y = 2.

Therefore, h(-2) = 2

-----------

If you mean h(x) = -4x+6

then h(-2) = 8+6 = 14

therefore, h(-2) = 14 for h(x) = -4x+6

Area =20^2 = 20 x 20 = 400 square feet

Answer: The answer is 400

Step-by-step explanation:

The answer is 400 because each side is 20feet and u have to multiply l x w so the answer is 400 because 20x20 is 400

Answer:its 13

Step-by-step explanation: you would take 2 and 3/5 and count how many 5ths in it like there is 5 fiths in 1 than 5 in the other 1 then you would add the 3/5 to it so its 13

Answer:

It be like that sometimes...

Answer:

50% because 0.05 is 5% :)

Answer:

5/6

Step-by-step explanation:

1/2 times by 3 = 3/6

1/3 times by 2 = 2/6

then add these together to get 5/6

Step-by-step explanation:

1/5x+60=2/3x-2

subtract 1/5x from 2/3x

when you do that you should get 0.46x repeating

then you add two to 60

you should get 62

62=0.46x

divide x

you get 134.7

Answer:

Its C

Step-by-step explanation:

hope this helps

Answer:

m=-8, b=3, y=-8x+3

m=2/5, b=-1, y=2/5x-1

y=-2x-1

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

5.50+0.85x=

The function rule to find the cost to ship a package that weighs [x] ounces is c[x] = 0.85x + 5.5.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is the cost of shipping a package overnight from San Antonio to Dallas, which is $5.50 plus $0.85 per ounce.

We can write -

Fixed cost of shipping overnight = $5.50

Cost per ounce for shipping = $0.85

The function rule that could be used to find the cost to ship a package that weighs [x] ounces will be -

c[x] = 0.85x + 5.5

Therefore, the function rule to find the cost to ship a package that weighs [x] ounces is c[x] = 0.85x + 5.5.

To solve more questions on equation modelling, visit the link below-

https://brainly.com/question/13516618

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Answer:

y = 8x + 5

Step-by-step explanation:

the equation y= mx + b is slope intercept for where m is the slope or rate of change and b is the y intercept so if you're given those numbers you can just plug them in

Answer:

300 Pi

Step-by-step explanation:

Surface area = 4pir^2

take derivative

8pi(r) * dr/dt

8pi(5) * 7.5

300 pi

Given:

The equation of line is

[tex]y=-\dfrac{1}{2}(x-18)[/tex]

The perpendicular line intersect the y-axis at (0,-1).

To find:

Equation of perpendicular line.

Solution:

Point slope form of a line is [tex]y-y_1=m(x-x_1)[/tex], where m is slope.

We have,

[tex]y=-\dfrac{1}{2}(x-18)[/tex]

Thus, the slope of this line is [tex]m_1=-\dfrac{1}{2}[/tex].

Product of slopes of two perpendicular lines is -1.

Let the slope of perpendicular line is [tex]m_2[/tex]. Then,

[tex]m_1\times m_2=-1[/tex]

[tex]-\dfrac{1}{2}\times m_2=-1[/tex]

[tex]m_2=2[/tex]

Slope of perpendicular line is 2 and it passes through (0,-1). So, the equation of perpendicular line is

[tex]y-(-1)=2(x-0)[/tex]

[tex]y+1=2x[/tex]

[tex]y=2x-1[/tex]

Therefore, equation of perpendicular line is [tex]y=2x-1[/tex].

The cheetah can run 2.42 km in 90 seconds

From the question, we are to determine how fast the cheetah could run in 90 seconds

First, we will convert the speed to meter/seconds

The given speed = 97 km/hour

97 km/ hour  = (97 × 1000 /3600) m/s

97 km/hours =  26.9444 m/s

Now, using the formula,

Distance = Speed × Time

From the given information,

Time = 90 seconds

∴ Distance = 26.9444 × 90

Distance = 2424.996 m

Distance = 2.424996 km

Distance ≅ 2.42 km

Hence, the cheetah can run 2.42 km in 90 seconds

Learn more on Calculating distance here: https://brainly.com/question/11107806

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Answer:4

Step-by-step explanation: trust me it’s correct