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3 years ago

8

The glee club has $90 to spend on pens and pencils. Each pen costs $0.75 and each pencil costs $0.15. Let x represent the number

of pens, and let y represent the number of pencils.
Part A
Select the equation that describes the number of club pens and pencils that the glee club can buy.

A. 0.15x + 0.75y = 90
B. 0.75x + 0.15y = 90
C. 0.90(x + y) = 90
Part B
What is the greatest number of each type of writing tool that the club can buy?

greatest number of pens =

greatest number of pencils =

2 answers:

Deffense [45]3 years ago

8 0

Answer:

part a: answer b. 0.75x + 0.15y = 90

castortr0y [4]3 years ago

4 0

Answer:

$0.75x + 0.15y = 90$

greatest number of pens =120

greatest number of pencils = 600

Step-by-step explanation:

Let x represent the number of pens

Let y represent the number of pencils.

Each pen costs $0.75

Cost of x pens = 0.75 x

Each pencil costs $0.15.

Cost of y pencils = 0.15y

Now we are given that The glee club has $90 to spend on pens and pencils.

So, $0.75x + 0.15y = 90$

So,t the equation that describes the number of club pens and pencils that the glee club can buy is $0.75x + 0.15y = 90$

Part A) $0.75x + 0.15y = 90$

Part B )What is the greatest number of each type of writing tool that the club can buy?

$0.75x + 0.15y = 90$

Substitute y = 0

$0.75x = 90$

$x = \frac{90}{0.75}$

$x = 120$

greatest number of pens =120

Substitute x = 0

$0.15y= 90$

$y = \frac{90}{0.15}$

$y = 600$

greatest number of pencils = 600

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Each of these problems expresses a proportion and asks you to find a missing value. You are given, for example, <em>value 1</em> and <em>related value 1.</em> You are asked to find <em>value 2</em> that corresponds to <em>related value 2</em>.

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