3 years ago

Select the correct answer, and simplify the expression -3÷(-2/5). A. -7 1/2

Mathematics

1 answer:

aliina [53]3 years ago

3 0

Answer:

Step-by-step explanation:

Given

- 3 ÷ - $\frac{2}{5}$

Leave the first number, change division to multiplication and turn the fraction upside down, that is

= - 3 × - $\frac{5}{2}$

= $\frac{3(5)}{2}$

= $\frac{15}{2}$

= 7 $\frac{1}{2}$ → D

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8_murik_8 [283]

Answer:

x=40

Step-by-step explanation:

x=4(x+10)÷5

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2 years ago

A is directly proportional to x and inversely proportional to y. If A=20 when x=6 and y=9, what is the value of A when x=9 and y

cupoosta [38]

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The lifespans of gorillas in a particular zoo are normally distributed. the average gorilla lives 20.8 years; the standard devia

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3 years ago

Mike hiked to a lake in 4.5 hours at an average rate of 2

aleksandrvk [35]

Answer:

It took Pedro 3.81 hours to reach the lake.

Step-by-step explanation:

Time taken by Mike to hike a lake = 4.5 hours

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Formula for distance can be seen as:

$Distance = Speed\times Time$

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Given that, Pedro also travels the same distance.

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2 years ago

natka813 [3]

Answer:

21s+8=r

need more characters

6 0

2 years ago