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serious [3.7K]
3 years ago
9

Solve for x:40= x/(−4/7)​ x=?​

Mathematics
2 answers:
Setler [38]3 years ago
3 0

x = -160/7

I dont feel like explaining sorry

EastWind [94]3 years ago
3 0
The answer is x= -160/7


Sorry do want to explain
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The equation g=3r represents how much Trevin makes per hour at his job. What is the unit rate?​
bazaltina [42]

Answer:

Hope It Help

Brainliest please

7 0
3 years ago
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A medical equipment industry manufactures x-ray machines. The unit cost C( the cost in dollars to make each x -ray machine) depe
Nikolay [14]

Answer:

18,646

Step-by-step explanation:

>you can graph the equation on a calculator and see that the minimum is at the point (250, 18646) , so the minimum unit cost is 18,646

>you can use the first derivative to find the minimum

c'(x) = (0.2x²-100x+31,146)' = .4x -100

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6 0
3 years ago
4y - 5x = 9<br> x = 4y + 11
Galina-37 [17]

4y - 5x = 9

x = 4y + 11

We can substitute this value of x in the first equation:

4y - 5(4y+11) = 9

4y - 20y - 55 = 9

16y = -64

y = -4

x = 4y + 11

x = -16 + 11

x = -5

4 0
3 years ago
2. Select the conversions that are equivalent to 10 yards.
Furkat [3]
C. 30 feet
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7 0
3 years ago
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What is the equation in slope-intercept form of the line that passes through the points(-4,2) and (12,6)?
BlackZzzverrR [31]

Answer:

A

Step-by-step explanation:

Slope intercept form is y = mx + b

First find the slope or m with this equation \frac{y2 - y1}{x2 - x1} (plug in) \frac{6 - 2}{12 + 4} = \frac{4}{16}=  \frac{1}{4}

So your slope is \frac{1}{4}

To find the y-intercept you use y= mx + b and plug in.

6 = 1/4(12) + b

6 = 3 + b (minus 3 on both sides)

3 = b

so 3 is the y-intercept

So the answer is A.

8 0
4 years ago
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