Question

Can someone please help? <3

60% of a number is 90.

What is 50% of that same number?

Answer 1

60% is equal to 0.6
0.6*x = 90
solve for x, then find 50% of x

Answer 2

60%=60/100=0.6 0.6*x=90 x=90/0.6 x=150 -> 60% of 150 = 0.6*150 = 90

Answer 3

its 75

Answer 4

YAY!!! Thanks @kyle.ingoldsby415
and thanks @xavierbo2

Answer 5

90 divided by 60/100 which is 90/0.6 which is 15

Answer 6

ur welcome

Answer 7

65% of what number is 39?

Answer 8

39 is 65% of what number
65%= 0.65

39/0.65=
60

Answer 9

so the answer is 60?... oh it make ssence lol i was multiplying

Answer 10

You can also use a proportion.

60% is 0.60 as a decimal
50% is 0.50 as a decimal
the unknown number is x
the 50% of the number we are looking for is y

0.6x is to 90 as 0.5x is to y

\(\dfrac{0.6x}{90} = \dfrac{0.5x}{y} \)

Divide both sides by x, and the only unknown left is y:

\(\dfrac{0.6}{90} = \dfrac{0.5}{y} \)

Cross multiply:

\(0.6y = 0.5 \times 90\)

\(0.6y = 45\)

\(y = \dfrac{45}{0.6} \)

\(y = 75\)

Answer: the number is 75