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Sedbober [7]
3 years ago
13

Question 12 onlyyyyyyyy

Mathematics
1 answer:
netineya [11]3 years ago
5 0
For number 12 you need to make an expression using the information given. a) 25g + 18r + 15b could be the expression.
b) The variables would be 25g for the 25 gold seats, 18r for the 18 red seats and 15b for the 15 blue seats. 
c) Plug in the number given according to the variables.
       25(100) + 18(250) + 15(200)
             2500 + 4500 + 3000
                   7000 + 3000
                        $10,000
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1) A square has a side length of 10 inches. What is the perimeter?
antiseptic1488 [7]

Answer:

1) 40

2)9x-12

3)42

Step-by-step explanation:

1) A square has 4 sides, and if one side's length is 10, the perimeter (distance around the square) is 10 times 4=40

2) Simply add these values together to get 9x-12

3) Plug in 6 as x in 9x-12. (6*9)-12=54-12=42

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2 years ago
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3 0
3 years ago
Kelly tells you that when variables are in the denominator, the equation one over two plus three over x equals three over four b
Lera25 [3.4K]
1/2 + 3/x = 3/4
3/x = 3/4 - 1/2
3/x = 3/4 - 2/4
3/x = 1/4....this is a proportion, so we cross multiply
(1)(x) = (3)(4)
x = 12

check..
1/2 + 3/12 = 3/4
6/12 + 3/12 = 3/4
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3/4 = 3/4 (correct)

so x = 12

6 0
3 years ago
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Which numbers belongs in the box?
EleoNora [17]

Answer:

C

Step-by-step explanation:

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Answers...............
umka21 [38]
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