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Greeley [361]
3 years ago
11

Evaluate 2a + 6b for a = 4 and b = 5.12a+60 =2a + 6b=​

Mathematics
2 answers:
Kobotan [32]3 years ago
7 0

Step-by-step explanation:

12×4= 48

48+60= 108

2×4= 8

6×5= 30

8+30= 38

12a+60= 108

2a+6b= 38

galina1969 [7]3 years ago
5 0

Answer:

38 and 108

Step-by-step explanation:

2a + 6b

2 (4) + 6 (5) Plug in values

8+30 = 38

12a + 60

12 (4) + 60 = 108

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Answer:

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Step-by-step explanation:

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percentage of student wearing glasses are:

\frac{12}{18}  \times 100 = 66.666666667\%

Done :))

4 0
3 years ago
One gallon is 3.8 litres. How many litres will you need for 675 square ft? Show your work!
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Answer:

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Step-by-step explanation:

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4 years ago
What is the area in square units of the trapezoid
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2 years ago
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Monica [59]

Answer:

1. 9 = x

2. y = 2

Just copy these steps on paper, then submit.

Writing it yourself will help you, trust me :)

1. 2(x + 5) = 3x + 1

2(x + 5) = 3x + 1

Distribute the 2

2x + 10 = 3x + 1

-1                    -1

2x + 9 = 3x

-2x         -2x

9 = x

2. 3y - 4 = 6 - 2y

3y - 4 = 6 - 2y

     +4    +4

3y = 10 - 2y

+2y       +2y

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Divide both sides by 5

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6 0
3 years ago
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7 0
2 years ago
Read 2 more answers
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