Question

Make the following changes to the number 7.849: make the 7 worth 1/10 as much.

Answer 1

So you want 7 to be 1/10 of much. Pretty easy. All you need to do is change 1/10 into a decimal by dividing.

1 ÷ 10 = 0.1

Now you multiply 7 and 0.1

7 × 0.1 = 0.7

So your answer is 0.7!

Answer 2

The change applied to 7.849 is to multiply it by 0.1 to get 0.7849.

Explanation:

We need to make 7 in 7.849 worth
`(1)/(10)`.

Now,
`(1)/(10)` = 0.1

Thus, to make 7 in 7.849 worth 0.1, we multiply the number by 0.1

i.e. 7.849 × 0.1 = 0.7849

Hence, the change applied to 7.849 is to multiply it by 0.1 to get 0.7849.