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Cloud [144]
3 years ago
7

What - 31 equals to 213

Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:

-31+224=213

Step-by-step explanation:

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Cindy plans to shop for her school supplies and wants to know how much money she would need to spend. from her friend she knows
vlabodo [156]

Let the cost of 1 notebook be x and the cost of 1 binder be y.

4 notebooks and 3 binders would cost 23.5

Therefore, 4x + 3y = 23.5     (1)

7 notebooks and 6 binders would cost 44.5

Therefore, 7x + 6y = 44.5     (2)

Multiply the first equation by 2.

8x + 6y = 47     (3)

(3) - (2) gives

x = 2.5

Substitute the value of x in (1), we get,

4(2.5) + 3y = 23.5

10 + 3y = 23.5

3y = 23.5 - 10

3y = 13.5

y = 13.5/3

y = 4.5

Hence, cost of 5 notebooks and 3 binders is:

5x + 3y = 5(2.5) + 3(4.5)

           = 12.5 + 13.5

           = 26

Hence, cost of 5 notebooks and 3 binders is $26.

4 0
3 years ago
There is a book sale at the libaray the price for each book is $4 which expression can be used to show how much money the librar
ASHA 777 [7]
4 x 289= the total cost
6 0
3 years ago
A package being delivered in the mail weighs 1056 ounces. How much does that package weigh in pounds?
Vlad1618 [11]

Answer:

66

Step-by-step explanation:

16 oz equal a pound so 1056 divided by 16

5 0
3 years ago
10 is 40% percent of what
asambeis [7]
<span>10 is 40% percent of what </span><span>400 </span>maybe 
4 0
3 years ago
Read 2 more answers
11. Tyler loves buying new sneakers. Normally they cost $80.00. Today
Minchanka [31]

Answer:

60

Step-by-step explanation:

4 0
2 years ago
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