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monitta
2 years ago
13

Five students can wash a car in 18 minutes. If the time it takes to wash a car varies inversely with the number of

Mathematics
1 answer:
Anastasy [175]2 years ago
6 0
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6x-58+2x+4=5x<br>find the value of x
mariarad [96]
You pass the x in one side and numbers to the other side
8x-5x=58-4
add and subtract
3x=54
divide by 3
x=18
7 0
3 years ago
In a direct variation, the ratio of y -values to x -values is equal to a constant.
liberstina [14]

Answer:

True

Step-by-step explanation:

The equation of direct variation is

y = kx ← k is the constant of variation

To find k divide both sides by x

\frac{y}{x} = k

That is the constant is the ratio of y- values to x- values

3 0
3 years ago
Read my name to understand this?
Molodets [167]

Answer:

Hello :) 12345678910

Step-by-step explanation:

5 0
3 years ago
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Find inverse of f(x) = 2 + 3x / x - 2
NeX [460]
Okay so, we switch out f(x) with y - I’m sure you know this and we get y=2+3x/x-2.

Now just interchange x and y -> x=2+3y/y-2, now multiply both sides with (y-2), we get (y-2)x=2+3y.

Multiply x with the brackets, getting xy-2x=2+3y. Move 3y to the left changing it’s sign, also for -2x to the right: xy-3y=2+2x.

Factor out y from (xy-3y) and get (3-x)y=2+2x - now divide both sides by (3-x) resulting in y=2+2x/3-x .
7 0
3 years ago
Tomatoes cost $0.70 per pound.<br> 2<br> 6<br> 8<br> Weight (lb)<br> Price ($)<br> 1.40 2.10
likoan [24]

Answer: 2, 3, 6, 8 (top) 1.40, 2.10 4.20, 5.60 (bottom)

Step-by-step explanation: If 1 pound = 0.70, then 2*0.70=1.40. 2.10 divided by 0.70=3. 0.70*6=4.20. 0.70*8=5.60.

5 0
2 years ago
Read 2 more answers
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