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15-09-2019
Mathematics

contestada

Mary’s dog weights 81 pounds. Sandy’s dog’s weight is equal to 4 pounds less than 1/3 of marys dog’s weight. How much does Mary’s dog weight?

Respuesta :

Katieg3593 Katieg3593

15-09-2019

Answer:

Mary 81

Sandy 30

Step-by-step explanation:

S-3=M/3

multiply by 3

3s-9=m

m=81

3s-9=81

add 9

3s=90

divide by 3

s=30

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