Daniel got 86% on his test and he solved 5 points extra credit problem. What would be his new grade on this test?
1 answer:
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First define the variables:
c = amount of children
a = amount of adults
Next create the equations to satisfy the conditions:
1) Total group is 12 people:
2) Total cost is $100 with adults costing $10 and children being $6:
Answer:
The answer is (d) ⇒
Step-by-step explanation:
* To simplify the cube roots:
If its number then the number must be written in the form x³
then we divide the power by 3 to cancel the radical
If its variable we divide its power by 3 to cancel the radical
∵
∴
∵
∵
∴
∴
∴ The answer is (d)