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3 years ago

the profit p (in dollars) from selling x calculations is p =25x-(10x+250) how many calculators are sold when the profit is 425

1 answer:

5 0

The profit function is given by:
p=25x-(10x+250)
the number of unit sold if the profit is 425
here we solve for x when p(x)=425
substituting the values in the equation we get:
425=25x-(10x+250)
425=25x-10x-250
solving for x we get:
425=15x-250
425+250=15x
675=15x
x=675/15
x=45
thus the number of units sold is 45

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A square has an area of 576 great inches how long is each side of feet

bija089 [108]

The formula for the area of a square is A=s*s or A=s^2
So we can plug in the area and solve for the side
576=s^2 (square root both sides)
s=24 inches

Since one foot is 12 inches, 24 inches would be 2 feet

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2 years ago

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In a circle, what is the ratio of the circumference to its diameter?

NemiM [27]

Answer:

D. pi

Step-by-step explanation:

Circumference of a circle = $\pi d$

Diameter = d

Therefore, ratio of circumference of a circle to its diameter would be:

$\pi d : d$

$= \frac{\pi d}{d} = \pi$ => (d cancels d)

Therefore, the ratio of the circumference of a circle to its diameter is $\pi$

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3 years ago

A Ferris wheel has a diameter of 56 ft. how far will a rider travel during a 4-minute ride if the wheel rotates once every 20 se

Luba_88 [7]

First calculate the circumference. Usually this is the diameter times pi, but since we are told to estimate pi, the circumference equals 56 * 22/7 or 176 feet.
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So we know that the rider rotates 12 times and each rotation takes them 176 feet, meaning that they will travel 12 * 176 = 2112 feet

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2 years ago

Which choice shows the coordinates of C’ if the trapezoid is reflected across the y-axis?

padilas [110]

Answer:

Step-by-step explanation:

C is located at (5,3).

If you want to reflect this over the y-axis, you need to have the same distance that (5,3) is to the y-axis on both sides.

If you look at your graph you should see that (5,3) is 5 units a way from the y-axis so when you put it on the other side it should be 5 units a way also.

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skelet666 [1.2K]

Evaluate this...
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$\frac{x^2+2x-4}{-1}$
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${x^2+2x-3}$

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2 years ago