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irinina [24]
2 years ago
15

A camera is selling for $7.50 off the regular price. It was marked down 15%. A student used the equation:

Mathematics
2 answers:
Sonbull [250]2 years ago
8 0

Answer:

A camera is selling for $7.50 off the regular price. It was marked down 15%.

Let the regular price be x

We can solve as follows:

x-0.15x=7.50

=> 0.85x=7.50

=> x = 8.82

The correct regular price is $8.82.

A student used the equation:

15(7.5) = Original price

and found the regular price of the camera to be $112.50.

The student did the wrong calculation. He simply took 15% of selling price.

He should have done 15% of regular price that will come to be the selling price.

andrezito [222]2 years ago
4 0

Answer:

The student should have divided the discounted amount by the percent. The percent should have been written as a decimal.

Step-by-step explanation:

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2 years ago
Find a line that lies entirely in the set defined by the equation x2 + y2 − z2 = 1.
RUDIKE [14]

Answer:

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Step-by-step explanation:

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A line segment is a line that has two end-points and a ray is a line that has one end-point.

Given equation is x^2+y^2-z^2=1

To find : a line that lies entirely in the set defined by the given equation.

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8 0
2 years ago
Byron has 1 7/10 kilograms of black pepper. He uses 7/8 of the black pepper and splits between 7 pepper shakers. How much pepper
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Which of the following expressions represents "no more than 5"?
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Answer:

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2 years ago
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8 0
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