Acompany made $4 million in the second quarter. this is 1/3 more than it made in the first quarter and 4/5 of what it made in the third quarter. how much did the company make in the three quarters combined?

Let the unknown amount in first quarter be x

 4 million = 1/3

      x       = 1 (whole amount)

we simplify the equation

x 1/3 = 4  → x = 4 × 3/1 → x = 4 x 3 → x = 12 million

First quarter amount is 12 + 4 = 16 million

Let y be the unknown amount for third quarter.

4 million = 4/5

          y = 1 (whole amount)

we simplify again:

y 4/5 = 4  →  y = 4 × 5/4  → y =  20 / 4  → y = 5 million

Second quarter amount is 5 million

Total amount for all three quarters:

16 + 4 + 5 = 25 million

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153