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Dafna11 [192]
2 years ago
15

Enter an expression into each box to create a true equation 30x + __=6(__+7)​

Mathematics
1 answer:
slava [35]2 years ago
3 0

30x + 42 = 6(5x + 7) you can understand it now

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At the local market, Bill buys 3 juice boxes and 2 hot dogs at a cost of $8, while Sarah buys 2 juice boxes and 1 hot dog at a c
baherus [9]

Answer:

The cost of each juice boxes is $ 2

The cost of each hot dogs is $ 1  .

Step-by-step explanation:

Given as :

The amount which Bill pays for 3 juice boxes and 2 hot dogs = $ 8

The amount which Sarah pays for 2 juice boxes and 1 hot dogs = $ 5

Let The cost of each juice boxes = $ j

And The cost of each hot dogs = $ h

Now, According to question

3 j + 2 h = 8               .........A

2 j + 1 h = 5                 ..........B

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or, 4 j + 2 h = 10

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Or, ( 4 j - 3 j ) + ( 2 j - 2 h ) = 2

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So , The cost of each juice boxes = j = $ 2

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I.e  3 × 2 + 2 h = 8

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Or. 2 h = 8 - 6

or, 2 h = 2

∴   h = \frac{2}{2} = 1

So, The cost of each hot dogs = h = $ 1

Hence The cost of each juice boxes is $ 2

And The cost of each hot dogs is $ 1  . Answer

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