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zepelin [54]
3 years ago
15

Please help me!!! :)

Mathematics
1 answer:
Elena-2011 [213]3 years ago
8 0

(2x-4) / 5 = x + 4.  Mult. both sides by 5 to eliminate the fraction on the left side:

2x-4=5x + 20

Combining like terms, 3x = -24, and so x = -8

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PLEASE HELP!!!!
pogonyaev

Answer:

30.667, in 1 hour = 40 miles

Step-by-step explanation:

Set up a proportion so 1.5 miles / 2.25 minutes.

So 1.5/2.25 = x/46

solve for x 1.5(46)/2.25 = x so x = 30.667

In one hour is 60 minutes so  1.5(60)/2.25 = x

8 0
3 years ago
Find f(-2) for the following function. <br><br>f(x)=3.6x-2​
butalik [34]

Answer:

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Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x) , that is

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4 0
3 years ago
Which best describes the solution to 4 – 7? Because –4 + (–7) is an equivalent expression, the answer is –11. Because 4 + (–7) i
ANTONII [103]
The answer to your question would be: Because 4 + (-7) is an equivalent expression, your answer is -3. The reason for this can be described using integers. So lets say you have $4. You owe your brother $7. Since you don't have enough to pay him, you can pay him all your money, but you still have to pay him $3 more. This means technically your balance is $-3, cause if he needs the money, the second you get it he will ask for it. Sorry if this isn't too great of an example, not sure what else I could think of. Pretty much remember when subtracting a number, you can add the negative of the number, because that is the same thing. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer (Not necessarily mine). Thanks, it really helps! :D
3 0
3 years ago
Read 2 more answers
What is the length of the altitude of the equilateral triangle below?
balandron [24]

\bf \textit{height or altitude of an equilateral triangle}\\\\ h=\cfrac{s\sqrt{3}}{2}~~ \begin{cases} s=\stackrel{length~of}{a~side}\\ \cline{1-1} s=8\sqrt{3} \end{cases}\implies h=\cfrac{8\sqrt{3}\cdot \sqrt{3}}{2}\implies h=\cfrac{8\sqrt{3^2}}{2} \\\\\\ h=4\cdot 3\implies h=12

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3 years ago
Gabriela drank three fourths of her glass of milk and jenny drank six eighths of her glass of milk if the glasses were the same
Grace [21]

Answer:

just croos multi

Step-by-step explanation:

its very easy

4 0
3 years ago
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