Mary wanted to add to her collection of model planes and trains. She wanted to add 5 model planes which cost $19 each and 3 model trains which cost $199 each. Which of the following is a good estimate of how much money Mary spent?
$650
$700
$750
$800
$850
A good estimate of how much money Mary spent would be:
5 model planes × $19 per plane = $95 for the planes
3 model trains × $199 per train = $597 for the trains
Total cost ≈ $95 + $597 = $692
Therefore, the closest option is $700.
what is the Answer 700
Yes, the answer is 700.
To determine how much money Mary spent, we need to calculate the total cost of the 5 model planes and the 3 model trains.
To calculate the cost of the model planes, we multiply the cost of each plane ($19) by the number of planes (5):
Cost of model planes = $19 * 5 = $<<19*5=95>>95
To calculate the cost of the model trains, we multiply the cost of each train ($199) by the number of trains (3):
Cost of model trains = $199 * 3 = $<<199*3=597>>597
Now, to find the total cost, we add the cost of the model planes and the cost of the model trains:
Total cost = $95 + $597 = $<<95+597=692>>692
So, a good estimate of how much money Mary spent is $700.
Therefore, the answer is:
$700.