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2 years ago

What is 2x+2x-4+2x+4x

2 answers:

8 0

Hey there!
This question is about finding and combining like terms.

Like terms are essentially terms with the same variable. This means that out like terms are 2x, 2x, 2x, and 4x.

Therefore, we have:
x(2+2+2+4) = x(10) = 10x
Another way to do this is to just add the coefficients to get 10x.

Remeber we're subtracting four too, so our answer is:

10x - 4

Hope this helps!

Alchen [17]2 years ago

3 0

To solve this question, simply add the terms that are the same together, in this case you would add 2x together and 4x’s.

Keep the constant 4 separate.

10x - 4, should be the answer.

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24 students in a class took an algebra a test. If 18 students passed the test what percent passed?

stiks02 [169]

Answer:

75% of students passed

Step-by-step explanation: divide 18 by 24 to find the precentage

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2 years ago

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Solve 2x+y=3.5,-x+2y=2.5

padilas [110]

Answer:

y=1.7

x=.9

Step-by-step explanation:

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2 years ago

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Write a mathematical sentence that expresses the information given below . Use t as your variable name.Necessary type <= to m

miskamm [114]

Answer:

t + 8° > 82°

Step-by-step explanation:

Given that :

Let t = temperature when Susanne checks at 11:00

If t rises by 8 more degrees, it will break the record high temperature for that day

Record high temperature for the day = 82 degree

Hence,

Temperature at 11:00 + 8° > record high temperature for the day

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6 0

2 years ago

I WILL MARK YOU BRAINLIEST!I REALLY NEED HELP WITH 20 PLEASE HELP ME

Finger [1]

Answer:

AP is 11.25 so the answer is F

Step-by-step explanation:

Since they are similar triangles (due to the ~ symbol)

You can write this:

AC/XZ = AP/XQ

since XZ=12

XQ=5

AC=27

you can write:

27/12=AP/5

then cross multiply:

27x5=135

135/12=11.25

AP is 11.25

6 0

3 years ago

What is the constant of proportionality in the graph below? (answer must be simplified fraction) PLEASE HELP I WILL MAKE U BRAIN

Pepsi [2]

Answer:

The constant of proportionality is $\frac{9}{2}$

Step-by-step explanation:

The constant of proportionality is the ratio between two directly proportional quantities

If x and y are in directly proportion, then $\frac{y}{x}=k$ , where k is the constant of proportionality.

The direct proportion can be represented by a line whose equation is y = kx, where k is the slope of the line.

<em>To find the constant of proportionality from the given graph choose a point on the line and substitute x and y in the equation of the proportionality by the coordinates of the point.</em>

∵ Point (4, 18) lies on the line

∴ x = 4, y = 18

∵ The equation is y = kx

→ Substitute x by 4 and y by 18

∴ 18 = k(4)

∴ 18 = 4k

→ Divide both sides by 4 to find k

∴ $\frac{18}{4}=\frac{4k}{4}$

∴ $\frac{18}{4}=k$

→ Simplify the fraction by dividing up and down by 2

∴ $\frac{9}{2}=k$

∴ The constant of proportionality is $\frac{9}{2}$

6 0

3 years ago