3. Ron and Mark are card collectors. Ron traded 14 basketball cards for 5 boxing cards and Mark traded 10 basketball cards for 22 boxing cards. Are they proportional?
SOLUTION :
14/5 = 10/22
14 × 22 = 5 × 10
308 ≠ 50
ANSWER : Therefore, they're not proportional.
14. On math exam, Lily scored 75 points for answering 17 questions correctly and Tom scored 70 points for answering 16 questions correctly. Is this fair?
SOLUTION :
75/17 = 70/16
75 × 16 = 17 × 70
1,200 ≠ 1,190
ANSWER :No
15. The ratio of mammals to reptiles in crocodile park is 12 to 5. If there are 72 mammals, how many reptiles are there?
Answers & Comments
Answer:
1.)110.231
2.)3minutes
3.)Yes
4.)No
5.)85
Verified answer
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1. 50 kilograms : 110.231 pounds
2. 180 seconds : 3 minutes
3. Ron and Mark are card collectors. Ron traded 14 basketball cards for 5 boxing cards and Mark traded 10 basketball cards for 22 boxing cards. Are they proportional?
SOLUTION :
14/5 = 10/22
14 × 22 = 5 × 10
308 ≠ 50
ANSWER : Therefore, they're not proportional.
14. On math exam, Lily scored 75 points for answering 17 questions correctly and Tom scored 70 points for answering 16 questions correctly. Is this fair?
SOLUTION :
75/17 = 70/16
75 × 16 = 17 × 70
1,200 ≠ 1,190
ANSWER : No
15. The ratio of mammals to reptiles in crocodile park is 12 to 5. If there are 72 mammals, how many reptiles are there?
SOLUTION :
12/5 = 72/x
12 × x = 5 × 72
12x = 360
12x/12 = 360/12
x = 36
ANSWER: Therefore, the answer is 36.
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