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liq [111]
3 years ago
5

Which equation represents a direct variation

Mathematics
2 answers:
Darya [45]3 years ago
8 0

Answer:

Y=0.5

Step-by-step explanation: There can be no + or - .

Mazyrski [523]3 years ago
7 0

Direct variation is is when the x and y a direct relation

without constants added or subtracted

With being times by each other

so the only one that meets the definite is the first one

 y = 0.5x  means y is equal to half of x.  So you know that every y is directly related to half of x

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What is the constant in the expression 8x + 7x
olga55 [171]

Answer:

15x

Step-by-step explanation:

3 0
3 years ago
Whats an equation that make x=31 ? like in other words give me an equation where it leads down to 31
MrRa [10]
Sure, that's easy! Here's one

5x + 7 = 162

If I wanted to solve this equation, I would break it down. I'd subtract the result (162) by 7

162 - 7 = 155.

From there I just divide that by 5!

155 / 5 = 31

There it is! Ultimate proof that x is in fact 31!
5 0
3 years ago
Read 2 more answers
9x + 9 + 2x - 7(3 + x) =
SashulF [63]

Answer:

4x-12 or 4(x-3)

Step-by-step explanation:

9x+9+2x-7(3+x)

9x+2x+9-21-7x

11x-12-7x

11x-7x-12

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4 0
3 years ago
Order the following numbers from least to greatest.
gogolik [260]

Answer:

-45, 12, 83, 90

Step-by-step explanation:

5 0
2 years ago
Find the area of this trapezoid. Include the correct unit in your answer.
NemiM [27]

Answer:

\displaystyle A _{ \text{trapezoid}} =  70 {m}^{2}

Step-by-step explanation:

we are given a trapezoid

we want to figure out the area

remember that,

\displaystyle A _{ \text{trapezoid}} =  \frac{a + b}{2} h

where a and b represent the parallel lines and h represents the height

we get from the pic that a and b are 5 and 15 respectively and h is 7

so substitute:

\displaystyle A _{ \text{trapezoid}} =  \frac{5 + 15}{2} \times  7

simplify addition:

\displaystyle A _{ \text{trapezoid}} =  \frac{20}{2} \times  7

simplify division:

\displaystyle A _{ \text{trapezoid}} =  10\times  7

simplify multiplication:

\displaystyle A _{ \text{trapezoid}} =  70

since we multiply two same units we of course have to use square unit

hence,

\displaystyle A _{ \text{trapezoid}} =  70 {m}^{2}

4 0
2 years ago
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