Solve the following proportion for x. x8 = 717 Round your answer to the nearest tenth.

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

You would divide 717 by 8 which would result in x equaling 89.7

Ivanshal [37]3 years ago

3 0

Answer:

Step-by-step explanation:

x8=717

This can also be written as

8x=717

Divide both sides by 8

8x/8=717/8

x=717/8

x=89.625

We are to round up to the nearest ten. In rounding of numbers, numbers 1 to 4 are rounded up to 0 while numbers 5 to 9 are rounded up to 1.

Numbers can be rounded up to nearest ten, nearest hundred, nearest thousand. Numbers can also be rounded up to 1 decimal place, two decimal place, three decimal place, etc.

Rounding off 89.625 to the nearest ten. The unit before the tenth digit is 9, hence 9 would be rounded up to 1, and then added to the tenth digit, which is 8 to give 9.

Hence the answer is 90

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What is the sum of all the integers between the square root of 19 and the square root of 77?

Artist 52 [7]

Since we are only dealing with integers, we do not need to worry about decimals. Therefore, finding the exact values of sqrt(19) and sqrt(77) is not important. We can just estimate.

19 is between 16 and 25 (which are 4^2 and 5^2), so the square root of 18 is some number between 4 and 5.

77 is between 64 and 81 (which are 8^2 and 9^2), so the square root of 77 is some number between 8 and 9.

So the integers (whole numbers) that are between our two sqaure roots are 5, 6, 7, and 8.

Add them up and we have our answer.

5+6+7+8 = 26

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3 0