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ahrayia [7]
4 years ago
9

2 (4 minus 3 x) + 5 (2 x minus 3) = 20 minus 5 x?

Mathematics
1 answer:
bonufazy [111]4 years ago
3 0

Answer:

x=3

Step-by-step explanation:

2(4-3x)+5(2x-3)=20-5x

8-6x + 10x - 15= 20-5x

subtract 8 from 15

subtract 6x from 10x getting you

4x-7= 20-5x

add 5x to both sides

add 7 to both sides

getting you

9x=27

divide by 9 to both side getting you x=3

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Plzzzz help me with all of the parts and I will give you 100 points
Citrus2011 [14]

Answer:

Part A:$1,600

Part B:$2,000

Part C:$300

Step-by-step explanation:

Part A: What you do is it tells you to find out how much money is spent on housing and that is 80% of the bill so you do 2,000*80%=1,600.

Part B: It tells you what is it was actually 2,500 how much will you spend on housing so you just 2,500*80%=2,000.

Part C: What you do is it asks how much will you spend on food if you have 2,000. So it will be 2,000*15%=300.

8 0
4 years ago
Find the solution for m such that:<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B%20%20%5Csqrt%5B3%5D%7B%20x%5E%7B2%7D%20
Leviafan [203]
Let's raise the exponent three on both sides of the equation.

1/x^2 = (x^m)^3

1/x^2 = x^(3m)

1 = x^2.x^(3m)

1 = x^(2+3m)

X^(2+3m) = 1

For this to be true:

2+3m = 0

3m = -2

m = -2/3
5 0
3 years ago
3/4x+3y=12 for x when y=5
Karolina [17]
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = -4
Hope this helps! :)
Happy New Years!
4 0
3 years ago
After 2 minutes an ant traveled 110 meters and after 7 minutes the ant will have traveled 260 meters. Assuming a linear equation
artcher [175]

Answer: y = 30x + 50

Step-by-step explanation:

let y be the distance traveled (in meters) after x minutes.

If we plot y on the vertical axis and x on the horizontal axis, a straight line would be formed. The slope of the straight line would be

Slope, m = (260 - 110)/(7 - 2)

m = 150/5 = 30

The equation of the straight line can be represented in the slope-intercept form, y = mx + c

Where

c = intercept

m = slope

To determine the intercept, we would substitute x = 7, y = 260 and m = 30 into y = mx + c. It becomes

260 = 30 × 7 + c = 210 + c

c = 260 - 210

c = 50

The linear model becomes

y = 30x + 50

8 0
3 years ago
The distance between two points and all the points contained between them is _____________.
kompoz [17]

The answer is called a midpoint

3 0
3 years ago
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