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Zolol [24]
3 years ago
8

A library is having a book sale to raise money. Hardcover books cost $4 each and paperback books cost $2 each. Lauren spends $26

for 8 books.
Mathematics
1 answer:
Rudik [331]3 years ago
6 0

Answer:

4×5

3×2

Step-by-step explanation:

a+b=8 or a=8-b

4a+2b=26

4(8-b)+2b=26

32-4b+2b=26

32-2b=26

32-26=2b

6=2b

b=3

a=8-3

a=5

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Answer:

The time the patient expected to survive after diagnosis is 29 years.

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

Using a calculator

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