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vfiekz [6]
4 years ago
7

I don't understand this

Mathematics
1 answer:
igomit [66]4 years ago
6 0
Looking at the picture attached, you will notice that on one side, we have a side of length 7+5=12. Next, we have a side length of 4+5+2=11. Hence, as length*width=area for a rectangle, this is the overall area of the rectangle. Next, in the picture, there are clearly two sides taken out - a 2x5 as well as a 4x5 rectangle, which are subtracted from the total area, resulting in 11*12-2*5-4*5
Feel free to ask further questions!

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Why is (12-23) • 2 not the same as 12-(3•2)
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Step-by-step explanation:

Note the system of equation, PEMDAS. First, you solve parenthesis, then multiplication, then subtraction.

In this case, solve each of the expression given to us. Remember that parenthesis is first:

(12 - 23) * 2 = (-11) * 2 = - 22

12 - (3 * 2) = 12 - (6) = 6

- 22 ≠ 6

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3 0
3 years ago
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Simplify the expression: 4s+10–2+4s
lions [1.4K]

Answer:

8s+8

Step-by-step explanation:

Put it into groups: (4s+4s)+(10-2)=8s+8

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2 years ago
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ruslelena [56]

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It is expected to fall 2 inches of snow for each additional hour.

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As we want to find the amount of snow that will fall for each additional hour, we just need to use slope of the equation.

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3 years ago
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a water tank holds 24,000 gallons. how many hours will it take for 2/3 of the water to be used if the water is used at an averag
Likurg_2 [28]
In the question, it is already mentioned that the water tank holds = 24,000 gallons
In the given question it is also mentioned that the need is to find the time required to use 2/3 of the total water that the tank holds.
So the need is to find the amount of water that equals 2/3 of the total water in the tank.
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Quantity of water that needed to be used = [24000 * (2/3)] gallons
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In the problem it is also mentioned that the average rate of consumption per day is 650 gallons.
So
650 gallons of water used in = 24 hours
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So the time required to consume 2/3 of the total water in the tank is 590.77 hours.
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4 years ago
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