17.4k views
9 votes
Help, please

Thirty percent of a number is 8.4. What is 37.5% of the same number, a decimal to the nearest tenth?

User Papahabla
by
5.1k points

1 Answer

2 votes

Answer: 10.5 is my guess

Explanation:

1. 30% = 8.4

100 x

cross multiply

30(x) = 840

divide both sides by 30 = 28

2. 37.5% = y

100 28

cross multiply

1050 = 100y

divide both sides by 100 = 10.5

User Magnus Bull
by
5.0k points