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erastovalidia [21]
2 years ago
11

Whats the missing varible for the following questions ​

Mathematics
1 answer:
marta [7]2 years ago
7 0

Answers + Explanation:

1. x + 7 =10

if you know some number + 7 is 10, you know that number must be 3.

so, x = 3

the other way you can solve this would be:

x + 7 = 10

subtract 7 from both sides of the equation

x + 7 - 7 = 10 - 7

x = 3

2. Use the same strategy:

x - 8 = -5

add 8 to both sides of the equation

x - 8 + 8 = -5 + 8

x = 3

3. x + 3 = 6

subtract 3 from both sides of the equation

x + 3 - 3 = 6 - 3

x = 3

4. x + 6 = 3

subtract 6 from both sides of the equation

x + 6 - 6 = 3 - 6

x = -3

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Deffense [45]

Answer:

80 units.

Step-by-step explanation:

If it is a rectangular prism, then it is 5×2×8, which is 10, from the 5×2 and 8. 10×8 is 80. So the final answer is 80 units cubed. Hope this helps! If you are still confused, please comment so I can help you!

7 0
3 years ago
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Been trying to get this one answered for months, will make the first one to answer a brainliest :D Please explain how you did it
Nikitich [7]

Answer:

\frac{2}{7}

Step-by-step explanation:

In order to find the slope of a line you must find where the points intersect, use the formula for slope, substitute values, and simplify if needed.

In this case we were already given the points for slope:

P1=(-4,-4) = (x1,y1)

P2=(-2,3)=(x2,y2)

Slope formula:

slope = \frac{y2-y1}{x2-x1}

Now substitute:

\frac{-2--4}{3--4}

Solve using KCC: (Keep, Change, Change)

-2+4=2

3+4=7

=\frac{2}{7}

Because the slope isn't a negative you do not need to simplify the answer.

Hope this helps.

8 0
3 years ago
The net of a triangular prism and its dimensions are shown in the diagram. what is the lateral surface area of the triangular pr
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Answer: 120 sq in.

Step-by-step explanation:

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Which ordred pair is in the solution set of 4x + 8y&gt;16 ?
ss7ja [257]

yes thats fab Step-by-step explanation:

The perimeter of a rectangle is 46 inches. If the width of the rectangle is 9 inches, what is the length?

A.  

23 inches

B.  

14 inches

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28 inches

D.  

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6 0
2 years ago
Help I don’t understand the concept
kvasek [131]

Answer:

C. No, because one x-value corresponds to two different y-values

Step-by-step explanation:

An x-value cannot have two y-values. Hope this helps!

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3 years ago
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