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Mariana [72]
3 years ago
14

Please help i'm taking a test, and when you get the answer please explain how you got it!!

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
6 0

<u>Answer:</u>

y = 122.57

<u>Explanation:</u>

y = 143 when x = 49

Y varies directly with x, so the equation is --> y = kx (k would be the constant of variation).

k = y/x = 143/49

y = (143/49) x

When x = 42 --> y = (143/49) · 42 --> y = 2.92 · 42 --> y = 122.57

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Y intercept <br> x intercept<br> and the slope
masha68 [24]

Answer:

y-intercept = (0, - 3)

x-intercept = (-6, 0)

slope = - 1/2

Step-by-step explanation:

The y intercept is the value of y when the x = 0. By looking at the graph, we can tell that when x = 0, y = - 3. Likewise for the x-intercept.

We can use the slope formula to determine the slope.

m = y2 - y1/ x2 - x1

You can choose any 2 points on the line and substitute in the formula. I chose the y and x intercepts for easier calculations.

m = - 3 - 0/ 0 - (- 6)

m = - 3/ 6

m = - 1/2

6 0
3 years ago
A line passes through the points (–3, –4) and (6, 2).
Dmitrij [34]
The slope I got was 6/9 which can be reduced down to 2/3
8 0
3 years ago
- 2(x + 3) + 2(x + 4) = 24​
ANTONII [103]

Answer: no solution

Step-by-step explanation:

First lets simplify

-2(x+3) + 2(x+4) = 24

-2x - 6 + 2x + 8 = 24

We can simplify this further by combining like terms

2=24 is the equation we get after combining like terms.

Since 2 is not equal to 24, the answer is no solution.

5 0
3 years ago
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8 0
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3/8 x 3/8 simplified
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The answer to this problem is 9/64.
4 0
4 years ago
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