Gorden collects rocks. He has 35 sedimentary rocks, 25 igneous rocks, 15 metamorphic rocks, and 10 unknown rocks. Which ratio compares Gorden’s sedimentary rocks to his unknown rocks, expressed in simplest form?
3510
25:10
7:2
2:7
The Applewood Elementary math club has a boy to girl ratio of 14 : 1. What percent of the math club is made up of girls? (Round percent to the nearest tenth.)
6.7%
59%
82.9%
4.5%
Clarence is trimming bushes. He can trim 12 of a bush in 15 hour. At what unit rate can Clarence trim bushes?
10 bushes per hour
110 bush per hour
2 bushes per hour
212 bush per hour
The ratio of a rectangle’s length to its width is 2 : 1. If the length is 14 cm, what is its width?
14 cm
10 cm
7 cm
28 cm
A bag has 24 marbles. 37.5% are red marbles, 41.7% are green marbles, 12.5% are yellow marbles, and 8.3% are pink marbles. What is the ratio of the total number of marbles to yellow marbles? Select the correct answer in simplest terms.
2421
8 : 1
8 : 7
1 : 8
