Last summer,at a camp,the ratio of the number of boy campers to girl campers is 9:6.If there is 225 campers,how many boy campers
1 answer:
Answer: There were 135 boy campers and 90 girl campers.
Step-by-step explanation:
Let be "b" the number of boys campers and "g" the number of girl campers.
Given the following ratio of the number of boy campers to girl campers:
We know that for every 9 boys campers there were 6 girl camper; if we add them we get this sum:
Knowing that there were a total of 225 campers, we can set up the following proportion in order to find the value of "b". Then, solving for "b" we get:
Finally, we get that the number of girl campers was:
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Answer: B and D
Step-by-step explanation:
First, solve the terms inside of the parenthesis. As a general rule, whenever you multiply two terms that have the same base, you can add their exponents.
Applying this rule, the base in the problem is 6, and the exponents are 3 and -4. The sum of 3 and -4 leaves -1. Therefore, this is one of our solutions:
When you have an exponential term raised to another exponent, you can simply multiply the exponents. In the previous solution given above, multiply -1 and -3 to get 3. Therefore our second solution is: