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Kazeer [188]
3 years ago
10

Evaluate the variable expression using the given values for the variable.

Mathematics
1 answer:
bixtya [17]3 years ago
4 0

9514 1404 393

Answer:

  56

Step-by-step explanation:

Put the values where the variables are and do the arithmetic.

  3ab +b = 3(9)(2) +2 = 56

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mariarad [96]

Answer:

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Step-by-step explanation:

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3 years ago
Solve the following:<br> a) 4x-1 / 2= x+7<br> b)<br> 3x + 2 = 2x + 13 /3
11Alexandr11 [23.1K]

Answer:

a) 2.5

b)2.33

Step-by-step explanation:

a)

4x-\frac{1}{2}= x+7

Bring the numerals to the right hand side and the x terms to the left hand side

4x-x=7+\frac{1}{2}

Simplify

3x=\frac{15}{2}

Divide 3 on both sides, to get x

x=\frac{5}{2} =2.5

b)

3x+2=2x+\frac{13}{3}

Bring the numerals to the right hand side and the x terms to the left hand side

3x-2x=\frac{13}{3}-2

Simplify

x=\frac{7}{3} =2.33

5 0
3 years ago
line L passes through point (2, -5) and is perpendicular to the line with equation y=7. determine the equation of line L
Andrew [12]

Answer:

The equation of the line L is x=2

Step-by-step explanation:

we know that

The line y=7

Is a horizontal line (parallel line to the x-axis)

The slope of a horizontal line is equal to zero

A line L perpendicular to the given line must be a vertical line (parallel to the y-axis)

The slope of the line L is undefined

The line L passes through the point (2,-5)

therefore

The equation of the line L will be equal to the x-coordinate of the given point

x=2

7 0
3 years ago
A leaky faucet has a drip that produces 1.2 drops per second. How many drops will occur in one day?. Show all steps neatly.Write
NemiM [27]
28.8 drops will occur in one day because if you multiply 1.2 by 24, it will equal 24. I multiplied by 24 because 1 day is 24 hours

hope it helped :3
3 0
3 years ago
Read 2 more answers
Solve for y -3y-12=-4
Brilliant_brown [7]

Answer:

−8/3

Step-by-step explanation:

Step 1: Add 12 to both sides.

−3y−12+12=−4+12

−3y=8

Step 2: Divide both sides by -3.

−3y−3=8−3

y=−8/3

8 0
3 years ago
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