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Ymorist [56]
3 years ago
11

Use inverse operations to solve the following: 4.9 + z = -9

Mathematics
1 answer:
ale4655 [162]3 years ago
5 0

The answer is z = -13.9

In order to solve this, you need to use inverse operations. The inverse operation of addition is subtraction. So, this is the function we'll use

4.9 + z = -9 ----> subtract 4.9 from both sides

z = -13.9

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If 2x - 3 = 3x - 7, what is the value of x?
icang [17]

Answer:

x=4

Step-by-step explanation:

2x-3=3x-7

Subtract 2x from both sides of the equation

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Add 7 to both sides of the equation to isolate x

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Step-by-step explanation:

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Put the answer choice numbers where the x’s are in the equation and then solve. The ones that are equal to 0 once solved will be your answer
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2 years ago
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which of the following represents the equation of the line with an x- intercept of 6 that passes through the point (4,4)?
luda_lava [24]

Answer:

y=-2x+12

Step-by-step explanation:

To write the equation of a line, find the slope between two points. Substitute two points into the slope formula. If the equation has an x-intercept of 6 then the line passes through the point (6,0). Use (6,0) and (4,4) in the formula.

m = \frac{y_2-y_1}{x_2-x_1} =\frac{4-0}{4-6} =\frac{4}{-2} =-2

Since m = -2, substitute its value and the point (6,0) into the point slope form. Then simplify.

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7 0
3 years ago
What is the length of BD Round to one decimal place. Thanks!
Assoli18 [71]

Answer:

2.7

Step-by-step explanation:

ratios help

2.5 : 5.8 :: x : 6.2

2.5/5.8 = x/6.2

solve for x :

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8 0
3 years ago
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