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damaskus [11]
3 years ago
11

3 and 1/4 times -2 and 3/5? Answers: A. -8 9/20 B. -6  and 3/20 C. 6 and 3/20 D. 8 and 9/20

Mathematics
2 answers:
sashaice [31]3 years ago
6 0
3\frac{1}{4}*(-2\frac{3}{5})= \frac{13}{4}*(-\frac{13}{5})=-\frac{13*13}{4*5}=-\frac{169}{20}=-8\frac{9}{20}
wolverine [178]3 years ago
6 0
3\frac{3}{4}\cdot(-2\frac{3}{5})=\frac{3\cdot4+1}{4}\cdot\left(-\frac{2\cdot5+3}{5}\right)=\frac{13}{4}\cdot\left(-\frac{13}{5}\right)=-\frac{13\cdot13}{4\cdot5}=-\frac{169}{20}=-8\frac{9}{20}\\\\\\Answer:A
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the width is 0.7 feet

Step-by-step explanation:

Well we know that area = length * width. We know both the area and length, but not the width. Let's substitute the area and length in this equation, and substitute x for the width.

 

7 = 10 * x, or 7 = 10x

 

Now, solve for the width, or x, by dividing both sides by 10.

 

7(/10) = 10x(/10)

 

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