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Scrat [10]
2 years ago
11

Solve the expression (7th grade math): 17 - 1/5x + 2/3x - 92 + 7/10x

Mathematics
1 answer:
Rzqust [24]2 years ago
3 0

Answer:

The answer is 7/6x - 75.

Step-by-step explanation:

17 - 1/5x +2/3x - 92 + 7/10x

17 - 6/30x + 20/30x - 92 + 21/30x

-6/30x + 20/30x + 21/30x = 35/30x or 7/6x

17 - 92 = -75

7/6x - 75

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B. 90/360, because this is 1/4 from circle. It's even shown in the picture.
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2 years ago
Find the value of t perimeter
Natali5045456 [20]

Answer:

<h2><em><u>t = 15.2 is the answer</u></em></h2>

Step-by-step explanation:

<h2><em><u>1. Make an equation</u></em></h2>

numbers to find perimeter = perimeter

Side + Side + 2 unknown sides = perimeter

12 + 7.8 + 2t = 50.2

<h2><em><u>2. Simplify like terms</u></em></h2>

19.8 + 2t = 50.2

<h2><em><u>3. Solve</u></em></h2>

19.8 + 2t = 50.2

-19.8        - 19.8

2t = 30.4

<h2><em><u>t = 15.2</u></em></h2>

<h2><u><em>4. Check:</em></u></h2>

12 + 7.8 + t + t = 50.2

12 + 7.8 + (15.2) + (15.2) = 50.2

<h2><em><u>50.2 = 50.2</u></em>   Correct!</h2><h2 />

Hope this helped,

Kavitha

7 0
3 years ago
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I’ve attached my work...
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3 0
3 years ago
Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres pe
dezoksy [38]

Answer:

1/3 hr or 20 min.

Step-by-step explanation:

Call the trains A and B

Remember d = rt

Distance train A travels is 80t

Distance train B travels is 70t

Now, 80t + 70t = 50

              150t = 50

                    t = 50/150 = 1/3 hr or 20 min.

4 0
3 years ago
Read 2 more answers
8 x ( 14 + 7) = ____ + ( 8 x 7)
GaryK [48]
14+7= 21

8 x 21=168

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224
5 0
3 years ago
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