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vitfil [10]
3 years ago
13

Simplify 7x + 2 - 3x, if x = 8

Mathematics
2 answers:
KIM [24]3 years ago
7 0

Answer:

34

Step-by-step explanation:

Phoenix [80]3 years ago
6 0

Answer:

34

Step-by-step explanation:

(7*8)+2-(3*8)

=34

....

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A water delivery truck is filling the water tank at Morgan's house. The truck arrived with 2400 L of water. The number of liters
Luda [366]

Answer:

11.81 minutes

Step-by-step explanation:

Here is a simple step-by-step explaination of how to solve this word problem:

Since the truck has 2,400L in it to begin with, the first part of our equation will be 2,400L

L = 2400L



Next we know that the water in the truck decreases at a <u>rate</u> of 110L/min, or <u>Liters per minute</u>.

So we will put that in the equation:

L = -110L + 2400L

Now that we have our equation set up, its time to solve.

To figure out how much water it needs to lose in <u>total</u> to end up with 1100 L left, we subtract 1,100 from 2,400.

2,400 - 1,100= 1,300&#10;&#10;

Now we can take that number and divide it by how many liters per minute were lost.

1,300/110=11.81

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B. L=-110t + 2400, t=11.8 min

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