GRADE 7 MATHEMATICS (7.2) Number, operation, and quantitative reasoning. The student adds, subtracts, multiplies, or divides to solve problems and justify solutions. The student is expected to: (D) use division to find unit rates and ratios in proportional relationships such as speed, density, price, recipes, and student-teacher ratio.
NAME___________________
DATE___________
SCORE ___/5
7.2D Mini-Assessment 1.
2.
The ratio of the length to the width in a rectangle is 3:4. If the width is 36 centimeters, how long is the rectangle? A
48 centimeters
B
27 centimeters
C
24 centimeters
D
30 centimeters
4.
A
6
B
9
C
7
D
8
The Smith family traveled 456 miles in 8 hours. How far will they travel in 12 hours? A
648 miles
B
468 miles
C
476 miles
D
684 miles 5.
3.
The student-mathemtaics teacher ratio at Ellis Junior High is 90 to 1. If there are 630 seventh grade students at Ellis Junior High, how many seventh grade mathematics teachers are there ?
Mrs. Long’s class of 30 students has 16 boys. What is the ratio of boys to girls in her class? A
8:15
B
8:7
C
7:8
D
7:15
TEKSING TOWARD TAKS
ďƒ“2006
Ratios
A bag contains 5 red, 7 blue, 6 yellow and 2 green gumballs. What is the ratio of green to yellow gumballs in the bag? A
2:3
B
3:2
C
1:6
D
1:3
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