genesismperez31 genesismperez31

28-05-2020
Mathematics

contestada

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?
A. $650
B. $700
C $750
D. $800
E. $850

Respuesta :

clara92 clara92

28-05-2020

Approx. 5(20) + 3(200) = 100 + 600 = 700

So the answer is B, 700

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