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ipn [44]
3 years ago
6

What is the variable equation for 5 less than twice a number is 7?

Mathematics
1 answer:
lianna [129]3 years ago
3 0

Answer:

2n - 5 = 7

Step-by-step explanation:

Let the number  = n

Twice a number = 2n

5 less than twice a number = 2n - 5

2n - 5 = 7

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The quotient of a number x and −1.5  is 21
Andru [333]

<u><em>Answer:</em></u>

x = -31.5

<u><em>Explanation:</em></u>

We are given that the quotient of x and -1.5 is 21

<u>This means that:</u>

\frac{x}{-1.5} =21

To get the value of x, we will multiply both sides of the equation by -1.5

<u>This means that:</u>

\frac{x}{-1.5} * -1.5=21*-1.5

x = -31.5

<u>Note that</u> the value of x must be negative because we are dividing by a negative number and the quotient is positive (-ve/-ve is +ve and +ve/-ve is -ve)

Hope this helps :)

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3 years ago
Ms. Mincey wants to spend less than $80 on presents for her 2 brothers. What is the most amount of money she can spend on each o
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4 years ago
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Write an equation of the line passing through (1, -11) and (-4, -1)
myrzilka [38]

Answer:

Step-by-step explanation:

Slope = (-1+11)/(-4-1) = 10/-5 = -2

Equation of a line is

y +11 = -2(x-1)

y = -2x +2 -11

y = -2x -9

7 0
3 years ago
In the formula, W represents the number of what used by an appliance, TV represents the time, and hours, the appliances used, an
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Answer:

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Step-by-step explanation:

hope this helps you out

4 0
4 years ago
I need major help, again TvT
olga_2 [115]

Answer:

Step-by-step explanation:

first graph the y-intercept. when x=0, y=-3, so graph a point at (0,-3). since this is a straight line, we only need to graph one more point to find the line. since the slope is -1/5, we can plug in 5 for x to find integer points. when x=5, y=-1/5*5 -3 = -1-3=-4. so another point on the line is (5,-4). then just connect the two points to find the line

3 0
3 years ago
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