3 years ago

Estimate the sum of 502 and 47 by rounding both values to the nearest ten. What is the best estimate of the sum?

2 answers:

6 0

my best estimate would be 550

4 0

Nearest tenth of 502 is = 500
Nearest tenth of 47 = 50

So, the sum is = 500 + 50 = 550

In short, Your Answer would be 550

Hope this helps!

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Answer:

B. 5

Step-by-step explanation:

We have been given that R varies directly with S. When S is 16, R is 80. We are asked to find constant of variation.

We know that two directly proportional quantities are in form $y=kx$ , where,

k = Constant of variation.

Upon substituting our given values, we will get:

$R=k*S$

$80=k*16$

$\frac{80}{16}=\frac{k*16}{16}$

$5=k$

Therefore, the constant of variation is 5 and option B is the correct choice.

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