Question

(2.8 x 10^8) / (7 × 10^2)

Answer 1

7=x/5; she has earned 35 points

Explanation:

(5)7=x/5(5)

so, you multiply each side by five, since the inverse operation of division is multiplication, then solve.

7(5)=35

x/5(5)=x

so x (the number of points she earned) is equal to 35.

Answer 2

(2.8 x 10^8) / (7 × 10^2) = 400'000

Explanation: