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Key Concept Quiz 4.5
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1
Ken operates a summer camp for teenagers. From previous experience, he has learned that the food budget can be estimated fairly accurately by allowing $10 per day for girls, and $12 per day for boys. Write an equation for the weekly food budget F assuming that there are b boys and g girls enrolled.
A)F = 10b + 12g
B)F = 12b + 10g
C)F = 70b + 84g
D)F = 84b + 70g
2
Find the food budget if 25 boys and 30 girls are enrolled for the week.
A)$4200
B)$2100
C)$600
D)$300
3
The largest weekly food budget for the summer was $6860, when 40 boys were enrolled. How many girls were enrolled?
A)30
B)40
C)50
D)60
4
The food supplier offers free delivery if the food budget is at least $3080. Assuming an equal number of each, how many boys and how many girls must be enrolled?
A)15 of each
B)20 of each
C)25 of each
D)30 of each
5
Jeremy uses a bucket to carry bricks for a building site. The mass of the bucket equals two-thirds of the mass of a brick. When Jeremy puts 3 bricks in the bucket, the total mass is 4.4 kg. Find the mass of the bucket.
A)0.8 kg
B)1.0 kg
C)1.2 kg
D)1.4 kg





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