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scZoUnD [109]
3 years ago
7

Help Are the triangles similar? If so, determine the scale factor of ΔPQR to ΔEFD.

Mathematics
1 answer:
alex41 [277]3 years ago
8 0
The answer is B. 
When you set up a ratio of all the corresponding sides, the ratios all equal 2:1
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The price for a TV was decreased by 20% and then by 10%. By what percent was the new price lower than the original?
Finger [1]
Let's say the tv was 100$ . Reduced by 20% means the tv is now 100 - 20 = 80% of the original price.

0.8(100) = 80$
Reduced again; by 10% means that it is now 100-10 = 90% of the 80$
0.9(80) = 72$

sale price ÷ original price

72$ / 100$ = 0.72 which is 72% of the original price. Which is a mark down of:
100 - 72 = 28%

The new price is 28% lower than the original price.

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$1200 deposit at an APR of 4% with quarterly compounding for 2 years.​
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So she has 396460
she will withdarw 1700 per month, and withdraw is loss or minus or (-)

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isolate x then divide is the strategy

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add 1700x to both sides
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