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Liula [17]
3 years ago
13

What is the correct answer to my question ?

Mathematics
1 answer:
dangina [55]3 years ago
5 0

Answer:

13/17

Step-by-step explanation:

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The cost of 4 notebooks and 3 pens is $14.50. The cost of 5 notebooks and 6 pens is $21.50. Part A: What is the cost of each ite
White raven [17]

Answer:

notebook: $2.5

pen: $1.5

part B, he can buy 3 pens

Step-by-step explanation:

A

let the cost of notebook be n, cost of pen be p

1. 4n + 3p = 14.5

2. 5n + 6p = 21.5

by 1, you can get 3p = 14.5 - 4n, put it into 2

5n + 2(14.5 - 4n) = 21.5

5n + 29 - 8n = 21.5

3n = 29 - 21.5 = 7.5

n = 2.5

put n = 2.5 into 1

4(2.5) + 3p = 14.5

3p = 4.5

p = 1.5

B

Waseem buy 3 notebooks for each pen, let number of pen be m, then the number of notebook will be 3m

m(2.5) + 3m(1.5) < 27

2.5m + 4.5m = 7m < 27

m < 27/7

maximum integer value for m = 3

6 0
2 years ago
1. What's one way we can check our answer to 2 x10 = 20?
allsm [11]
The answer is b
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4 0
3 years ago
What equations are equivalent to -4+(4+5)?
Igoryamba

Answer:

-4 + 9

9- 4

Step-by-step explanation:

4 0
3 years ago
Help I need to correct this
Levart [38]
I believe B,C, and D is correct...

please vote my answer brainliest. thanks!
4 0
3 years ago
What is a equations ?
myrzilka [38]
An equation says that two things are equal. It will have an equals sign "=" like this:

<span>7 + 2 = 10 − 1</span>
4 0
3 years ago
Read 2 more answers
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