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Verna shipped three packages to chicago. If the packages weighed 12 1/2, 35 1/4, and 41 7/20 pounds, what was the total weight?
a. 89 1/10 pounds
b. 87 7/10 pounds
c. 84 13/20 pounds
d. 89 19/20 pounds

Respuesta :

frika

Answer:

A

Step-by-step explanation:

1st package weighs [tex]12\dfrac{1}{2}[/tex] pounds;

2nd package weighs [tex]35\dfrac{1}{4}[/tex] pounds;

3rd package weighs [tex]41\dfrac{7}{20}[/tex] pounds;

First, add whole numbers:

[tex]12+35+41=88[/tex]

Now add fractions:

[tex]\dfrac{1}{2}+\dfrac{1}{4}+\dfrac{7}{20}=\dfrac{10}{20}+\dfrac{5}{20}+\dfrac{7}{20}=\dfrac{10+5+7}{20}=\dfrac{22}{20}=\dfrac{11}{10}=1\dfrac{1}{10}[/tex]

So, the total weight is

[tex]88+1\dfrac{1}{10}=89\dfrac{1}{10}\ pounds[/tex]

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