Mathematics, 14.09.2020 17:01 jasonoliva13

What is 245.3 divided by 5=?

Answers: 3

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Answers

To do this without a calculator:

5 goes into 2 0 times.
5 goes into 24 4 times with a remainder of 4.
5 goes into 45 9 times
5 goes into 3 0 times
5 goes into 30 6 times

the answer is 49.06

look up long division for more info
049.06
5 ) 245.3
20
45
45
030
30

Answer from: locomexicano03

49.06
5 ) 245.30
-20
45
-45
03
30
-30
0

When you divide into a decimal, just ignore the decimal point doing your work at the bottom. If you run out of decimal places, just add a 0 to the end.

5 doesn't go into 2, so skip to the next part.
5 goes into 24 a total of 4 times.
4 times 5 is 20. 24 minus 20 is 4. Bring down the 5.
5 goes into 45 a total of 9 times.
9 times 5 is 45. 45 minus 45 is 0. Bring down the 3.
Bring up the decimal point.
5 doesn't go into 3, so put up a 0.
0 times 5 is 0. 3 minus 0 is 3. Add a zero to the end and bring it down.
5 goes into 30 a total of 6 times.
6 times 5 is 30. 30 minus 30 is 0. We're done!

Your answer is 49.06.

Answer from: Quest

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

Answer from: Quest

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

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