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Inessa05 [86]
4 years ago
12

Someone please help!

Mathematics
1 answer:
pav-90 [236]4 years ago
7 0

We need to find an expression which will help Sara calculate the total weight of the truck.

By hypothesis, we know that x represents the number of cans in the truck. And each can weigh 14 ounces, so the total weight of the cans in the truck is 14*x = 14x.

Now in the truck, there's a total of 840 cans and bottles combined. And x is the number of cans. So 840 - x is the number of bottles. And since each bottle's weight is 70 ounces, the total weight of the bottles in the truck is 70*(840-x) = 70*840 - 70*x = 58800 - 70x.

Now to find the total weight, we add the weight of the cans to the weight of the bottle: 14x + 58800 - 70x = 58800-56x.

So the equation to find the total weight of the truck is:

58800-56x, in which x represents the number of cans in the truck.

Hope this helps! :)

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Answer:

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Step-by-step explanation:

Given

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10x + 3y = 19<br> y = 2x + 5
sleet_krkn [62]

Answer:

x = 1/4

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Step-by-step explanation:

Given two equations

1. 10x + 3y = 19

2. y = 2x + 5

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10x + 3 X 2x + 3 X 5 = 19

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16x + 15 = 19

Subtract 15 from both sides to eliminate 15 on the left

16x + 15 - 15 = 19 - 15

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Divide both sides by 16 to isolate x

16x/16 = 4/16

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Using equation 2 , we have

y = 2x + 5

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= 2/4 + 5

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3 years ago
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4 years ago
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Vsevolod [243]

If we go back to the defenition of logs, we can find this solution quickly.


What you're saying when you say ㏒₂(5x+7) = 5 is that

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Step-by-step explanation:

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