3 years ago

Which describes the lines y=7/8x + 12 and y=-8/7x+7

Mathematics

1 answer:

Tasya [4]3 years ago

3 0

They are perpendicular

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The price of an item yesterday was $60. Today, the price fell to $42. Find the percentage decrease.

oksian1 [2.3K]

Answer:

-30% or 30% decrease

Step-by-step explanation:

What's percentage decrease?

Percent decrease is the difference between the initial value and new value, indicating a loss of value.
The formula to find percent decrease is $\frac{NV-IV}{IV} * 100$ , where NV = new value and IV = initial value.

How do we solve this problem?

We know that the original value was $60, so that represents IV. Also, now that the price is $42, it represents NV.
Now, we plug in the values!
$\frac{42-60}{60} * 100$
$\frac{-18}{60} * 100$
$-\frac{3}{10} * 100$
$-3 * 10$
$-30$

Therefore, the answer is 30% decrease.

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2 years ago

Malik collects rare stamps and has a total of 212 stamps. He has 34 more domestic stamps than foreign stamps. Let x represent th

Tamiku [17]

Answer:

123 domestic stamps

89 foreign stamps

Step-by-step explanation:

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3 years ago

52 thousandths in scientific <br> notation

In-s [12.5K]

The answer is,

"52 thousandths = 0.052

5.2 x 10^-2"

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3 years ago

Ill mark brainlist plss help

tresset_1 [31]

It’s 10. This is because 27/3 is 9 so the ratio is by 9

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3 years ago

PLEASE HELP 20 POINTS

Murrr4er [49]

Sine = (opposite)/(hypotenuse)

5 is the opposite (opposite of the hypotenuse)
13 is the hypotenuse (longest side)

5/13, or <span>5 ÷ 13 is your answer

hope this helps</span>

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3 years ago