In march, volunteers for a charity walkathon in toronto raised $89,351. volunteers in montreal raised $102,459. volunteers in edmonton raised $78,505. a. round each amount to the nearest thousand dollars. b. add the rounded amounts to estimate the total amount of money raised. c. use the estimate to choose the exact total from among the following. (1) $250,615 (2) $350,615 (3) $270,315 (4) $170,015

In your question, we are trying to find the total amount of money raised when the money is rounded to the nearest thousands.

In order to solve the problem, we would need to round the money raised to the thousands place.

The thousands place would be the number before the comma. (_),000.

Lets round for Part A:

89,351. The thousands place would be 9 in this case, when you look at the number to the right of it (3), it's not big enough to make 9 bigger, so we would keep the thousands place the same. It would end up as 89,000.

102,459. The thousands place would be 2, the number to the right of it is not big enough to be rounded up, so we would keep it the same. It would end up as 102,000.

78,505. The thousands place would be 8. The number to the right of it is a big enough number to let the number 8 be rounded, therefore we would round the 8 up to 9. It would end up as 79,000.

Part B

Our current values would be 89,000, 102,000, and 79,000.

Now, for part B, we would add the rounded values to get an estimate of the money saved:

You should get 270,000. Remember, that's just an estimate number.

Part C:

The answer choice that's close to that number is answer choice (3), $270,315.

Your FINAL answer should be (3) $270,315.

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).