Answer:
10 boys
Step-by-step explanation:
Given the ratio of boys to girls is 2:3 and there are 25 children in total .
Number of boys is 2:3 x 25
That’s
2:3 is equivalent to 2/3
Therefore
2/3 x 25
Multiply through
30/3
10boys
There are 10 boys at the camp
Answer:
its b-33
Step-by-step explanation:
dont worry i did it for khan
x = 6
you have to work out the problem and what ever you do to one side, you do to the other
2^5 + (4 + 3 + 1) = 40
((5 x 3) + (4 + 1)) x 2 = 40
I am assuming that the cost of an oil change already includes the mark-up.
So, 18 is 175%. 18 ÷ 1.75 = 10.29 is the original cost.
10.29 * 3/4 = 30.87/4 = 7.71 mark-up
10.29 + 7.71 = 18
Or if 18 is the basis of the mark-up, then,
18 * 3/4 = 54/4 = 13.50 mark-up
18 + 13.50 = 31.50 new cost of an oil change