Answer:
22.5
Step-by-step explanation:
SINCE Y VARIES DIRECTLY WITH X, WE USE THE FORMULA
y=kx; k representing the variable change, y= 7.5, x=5
> y=kx
>7.5= k(5) > 7.5= 5k
>k= 7.5/5 (divide to get the k)
k= 1.5
NOW REPLACE THE NEW VALUES OF X AND K AS THE VARIABLE CHANGE, TO FIND THE VALUE OF Y
>y=kx ; k=1.5 and x=15 y=?
>y= (1.5)(15)
>y=22.5
the value of y is 22.5 when x is 15
I believe A. but Major guess tho
24% of 38 = (1 - 24/100) × 38 = 28,88 = 29
24 % ←→ 29
x% ←→ 10
x = 10 × 24 ÷ 29
x = 8,27586
x = 8 %
ANSWER 8%
If you knew that 8*300=2400
Then you could likely figure that 8*20=160
And then just add the two together to get 2560
