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Dima020 [189]
3 years ago
9

You buy 8 pencils for $8 at the bookstore. Standard pencils cost $0.85 and specialty pencils cost $1.25. How many specialty penc

ils did you buy?
Mathematics
1 answer:
Oliga [24]3 years ago
3 0

Answer:

<u>We bought 3 specialty pens and 5 standard</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Standard pencils cost $0.85

Specialty pencils cost $1.25

You buy 8 pencils for $8

2. How many specialty pencils did you buy?

Number of specialty pencils = x

Number of standard pencils = 8 - x

Let's write our equation to solve for x:

0.85 (8 - x) + 1.25x = 8

6.8 - 0.85x + 1.25x = 8

0.4x = 8 - 6.8

0.4x = 1.2

x = 1.2/0.4

x = 3 ⇒ 8 - x = 5

<u>We bought 3 specialty pens and 5 standard</u>

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Let f(x)=g(x)h(x), g(10)=-4, h(10)=560, g'(10)=0, and h'(10)=35. find f'(10)
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Given that the mass of an average linebacker at Ursinus College is 250 lbs and the radius of a pea is 0.50 cm, calculate the num
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Answer:

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3 years ago
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