Question

Write an equation and solve. Round to the nearest hundredth where necessary. 19 is what percent of 40?

a. 2.1%
b. 47.5%
c. 52.3%
d. 40.4%
User: Solve the proportion
5/x = 4/8
A. 2
B. 6
C. 8
D. 10

Answer 1

the first one is B. idk the second

Answer 2

Explanation:

(a) Let x% of 40 = 19

Therefore,
`(x)/(100) * 40 = 19`

`(4x)/(10) = 19`

x =
`(190)/(4)`

x = 47.5

Thus, 47.5% of 40 = 19.

(b) It is given that
`(5)/(x) = (4)/(8)`

`x = (5 * 8)/(4)`

x = 10

Thus, we can conclude that the value of x = 10.