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vampirchik [111]
3 years ago
11

What is 8b - ab + 7a subtracted from 3a - 9ab + b? ​

Mathematics
2 answers:
laiz [17]3 years ago
5 0

Answer:

3a-9ab+b-8b-ab+7a

3a+7a-9ab-ab+b-8b

10a-10ab-7b

Step-by-step explanation:

nekit [7.7K]3 years ago
5 0

Answer:

10a-10ab-7b

Step-by-step explanation:

i dont feel like putting the steps but ik this is correct

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a company that manufactures cars for freight trains manufactured 226 cars in the month of august, out of which 190 were boxcars.
shusha [124]
First subtract 190 from 226 which will give us 36.  Then you can set up that as a fraction.  You put 226 as the denominator because it's the whole.  You put 36 as the numerator because it is the amount taken out.  36/226.  Now, you can simplify.  The easiest way to simplify is to divide by two until one of them is an odd number. 36/2= 18   226/2= 113   18/113.  Now, because these can't both be divided by two , we must find the lowest common denominator.  There is no common denominator for these two numbers, so the final fraction will be 18/113
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3 years ago
How is a ratio table used to graph equivalent ratios?
Oksanka [162]

Answer:

Ratio tables show equivalent ratios between two quantities. They can help you find equivalent ratios in order to solve problems.

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3 years ago
please help expert help please! giving 16 points please help! will mark brainliest! Please do question 3!!! love y’all!
likoan [24]

Answer:

12 meters i think but I may be wrong

5 0
3 years ago
HELP ASAP
Naily [24]

Answer:

y+4 = -\frac{1}{3} (x-1)

Step-by-step explanation:

1) First, find the slope of the line. Use the slope formula m = \frac{y_2-y_1}{x_2-x_1} to find the slope. Substitute the x and y values of the given points into the formula and solve:

m = \frac{(-5)-(-4)}{(4)-(1)} \\m = \frac{-5+4}{4-1} \\m = \frac{-1}{3}

So, the slope is -\frac{1}{3}.

2) Use the point-slope formula y-y_1  = m (x-x_1) to write the equation of the line in point-slope form. Substitute values for m, x_1, and y_1 into the formula.

Since m represents the slope, substitute -\frac{1}{3}  in its place. Since x_1 and y_1 represent the x and y values of one point on the line, choose any one of the given points (it doesn't matter which one) and substitute the x and y values of it into the formula. (I chose (1,-4), as seen below). This gives the equation of the line in point-slope form.    

y-(-4) = -\frac{1}{3} (x-(1))\\y+4 = -\frac{1}{3} (x-1)

5 0
3 years ago
Read 2 more answers
What is the measure of DCF?
Margarita [4]

angle DCF = angle DCE + angle ECF

angle DCF = 75° + 54°

angle DCF = 129°

4 0
3 years ago
Read 2 more answers
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