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ruslelena [56]
3 years ago
13

7b+8<100 how many books can Brian buy without overspending

Mathematics
2 answers:
Semenov [28]3 years ago
6 0

Answer:

Step-by-step explanation:

7b + 8 < 100

subtract 8 from both sides

7b < 92

divide both sides by 7

b < 92/7 ≅ 13.1

Brian can buy at most 13 books.

Kamila [148]3 years ago
4 0

Answer: You have to plug in the numbers.

So first let's plug in 13. 7*13+8=99

Now 15. 7*15+8=113

Now 18. 7*18+8=134

Lastly 20. 7*20+8=148

The answer is 13.

Step-by-step explanation:

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Step-by-step explanation:

Given:

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variance of a series = ?

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