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NARA [144]
3 years ago
5

Sentence.

Mathematics
1 answer:
Zarrin [17]3 years ago
6 0

Answer:

25

Step-by-step explanation:

We need to set up a system of equations, then solve for the number of board markers.

Let r represent red pens, let b represent board markers.

She has 41 items, so our first equation is r+b=41.

The total cost is $46.30, so our second equation is .55r+1.5b=46.3.

r+b=41

.55r+1.5b=46.3

Let's use substitution.

r+b=41

r=41-b

.55r+1.5b=46.3

.55(41-b)+1.5b=46.3

22.55-.55b+1.5b=46.3

22.55+.95b=46.3

.95b=23.75

b=25

He bought 25 board markers.

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Step-by-step explanation:

3 0
3 years ago
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jeka57 [31]
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PLEASE SEE ATTACHED IMAGE.
 For this case what you should do is find the arc length.
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 theta: angle
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3 0
3 years ago
The perimeter of a rectangle is 80 inches. The length is 4 inches longer than twice the width. What are the dimensions of the re
Ganezh [65]

Answer:

<h3>length = 28 cm</h3><h3>width = 12 cm</h3>

Step-by-step explanation:

Perimeter of a rectangle = 2l + 2w

where

l is the length

w is the width

From the question

Perimeter = 80cm

The length is 4 inches longer than twice the width is written as

l = 4 + 2w

Substitute this into the formula and solve for the width

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Divide both sides by 6

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That's

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l = 4 + 24

l = 28cm

Therefore

length = 28 cm

width = 12 cm

Hope this helps you

7 0
3 years ago
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Answers:

1)

Mean = $349.2

Median = $352.5

Range = $210

2)

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3)

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4 0
4 years ago
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frez [133]

Answer:

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Step-by-step explanation:

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x is the number of hours,

so when you multiply x by 48, you get

the total, which is y

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7 0
3 years ago
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