Barb walked 1.3 miles to her friend’s house and then 3/4 mile to the library. how far did barb walk in all?

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Step-by-step explanation:

we know that

To calculate the total distance Barb walked, add the distance to her friend's house plus the distance to the library.

so

Remember that

substitute

Convert to mixed number

2 x 503

step-by-step explanation:

its 1006

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: