234483279c20 234483279c20

23-03-2019
Mathematics

contestada

Last month, Raul bought 6 used books for $7.50. This month he bought 8 used books for $10.00. What is the constant of proportionality between the cost and the number of books bought?

A. 0.75
B. 1.25
C. 2
D. 2.5

Respuesta :

Charlyne0122 Charlyne0122

23-03-2019

each book cost 1.25

divide

7.50÷6= 1.25

10÷8= 1.25

this is the proportion

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