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Mice21 [21]
3 years ago
11

If 8a−4b=20 and 4a−8b=4, then what is the value of a−b?

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

1/2

-2(4a-8b=4)

=

-8a+16b=8

+8a-4b=2

——————

0+12b=-6

/12. /12

B= -1/2

Plug it in

4a-8(-1/2)= 4

4a+4=4

-4. -4

4a=0

/4. /4

A=o

Finish by plugging a and b in for the last part

0-(-1/2)

= 1/2

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Answer:

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3 years ago
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4.06 Question 4
sleet_krkn [62]

Answer:

we have that

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using a graph tool

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the answer isThe point (1, −5) lie in the solution set

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zloy xaker [14]

Answer:

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34 > 3(2 − x)

simplify the bracket

34 > 6 -3x

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Sorry I don't know how to graph here, but I can graph it by writing the way it can be graphed.

It is in slope intercept form; y = mx + b

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And b is 0; which means at 0 where the slope will be applied, go up 28 times and to the right 3 times.

Hope this helps!

Good luck.

3 0
4 years ago
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