3 years ago

PLEASEE HELPP MEEEE!!!!!!!!! PLEASEE!!!!!!!!!!!!!!! what is the value of x?

Mathematics

1 answer:

maks197457 [2]3 years ago

3 0

Answer:15

Step-by-step explanation:

27+x=42

Collect like terms

x=42-27

x=15

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The price of an item has dropped to $63 today. Yesterday it was $140. What was the percentage decrease?

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Given:

a.) The price of an item has dropped to $63 today.

b.) Yesterday it was $140.

For us to be able to determine the percentage decrease, we will be using the following formula:

$\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}$

We get,

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$\text{ Percentage Decrease = }\frac{\text{ Original Price - Present Price}}{\text{ Original Price}}\text{ x 100}$ $\text{ = }\frac{\text{ 140 - 63}}{\text{ 140}}\text{ X 100}$ $\text{ = }\frac{77}{140}\text{ X 100}$ $\text{ = }0.55\text{ x 100}$ $\text{Percentage Decrease = }55\text{\%}$

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