3 years ago

42 dollars is 72% of what number

Mathematics

1 answer:

Nataliya [291]3 years ago

5 0

42 dollars is 72% of what number?
58.33

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In ΔPRQ, the midsegment XY¯¯¯¯¯ is 4 units long. What is the length of QR¯¯¯¯¯?

bearhunter [10]

In this problem we have that

XY is parallel to QR

triangle PQR is similar to triangle PXY

$PY=YR \\PX=XQ$

by proportion

$\frac{QR}{XY}= \frac{PR}{PY}$

we have

$XY=4\ units$

$PR=2PY\ units$

substitutes

$\frac{QR}{4}=\frac{2PY}{PY}$

$\frac{QR}{4}=2$

$QR=8\ units$

therefore

the answer is

$8\ units$

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Step-by-step explanation:

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Step-by-step explanation:

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Donna bought a notebook for $3.50 and then spent half of her money for a textbook. Next she bought sheet music for $4.00 and the

Lady bird [3.3K]

Answer:

$43.50

Step-by-step explanation:

(Work out backward to find the answer)

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The diameter of the circlular garden is 16 feet what is the approximate area of the garden? Please hurry

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