1. 45/90 = x/100
45/90 = x/100
0.5 = x/100
x = 50%
45 is 50% of 90.
2. 19/100 = x/100
19/100 = x/100
0.19 = x/100
x = 19%
19 is 19% of 100.
3. x/60 = 75/100
x/60 = 0.75
x = 0.75 * 60
x = 45
75% of 60 is 45.
4. 35/100 = 7/x
35/x = 7/100
35(100) = 7x
3500 = 7x
x = 500
7 out of 500 is 35%.
5. 62/100 = 9.5/x
62/x = 9.5/100
62x = 950
x = 950/62
x ≈ 15.32
62% of approximately 15.32 is 9.5.
Write a proportion to represent each problem. Solve the proportion
1. 45 is what percentage of 90?
2. What percentage of 100 is 19?
3. What is 75% of 60
4. 35% is 7 out of what number?
62% of what number is 9.5?
1 answer