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Masteriza [31]
4 years ago
15

I will give the brainiest

Mathematics
1 answer:
Ilya [14]4 years ago
4 0

Answer:

a=3

Step-by-step explanation:

opening the bracket, we have

4x-2x-2a=8

2x-2a=8

x=7

2(7)-2a=8

14-2a=8

collect like terms

-2a=8-14

-2a=-6

divide both sides by -2

a=3

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Find the equation to the line below.
ZanzabumX [31]

Answer:

y = \frac{4}{5}x - 1

Step-by-step explanation:

Every time the line moves 5 units to the right, it moves up 4 units as well. Since the slope is the difference in y divided by the difference in x, the slope is 4/5. In addition, the y-intercept is -1. Therefore, the equation of this line is y = \frac{4}{5}x - 1.

4 0
2 years ago
Which ratio is equal to 15:20?<br> a: 5:10<br> b: 18:25<br> c:21:28<br> d: 24:30
tiny-mole [99]

Answer:

C - 21:28

Step-by-step explanation:

this is solved by a little bit of trial and error. divide the possible answer numerators by 15, and check if it's the same for the denominator.

For C I did this:

Divided the denominators: 28 ÷ 20 = 1.4....so that's 1.4.

Let's test it out for the numerator now. 21 ÷ 15 = 1.4.

So there's your answer.

4 0
3 years ago
the cost of 6 sandwiches and 4 drinks is $53. the cost of 4 sandwiches and 6 drinks is #47. how much does one sandwich cost?
Usimov [2.4K]

Answer:

$5.30

Step-by-step explanation:

8 0
4 years ago
A local store is advertising a shirt on sale for 40% off the original price. The sale price is $21.00. What was the original pri
pishuonlain [190]

Answer:

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Step-by-step explanation:

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  21 = 0.60p

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The original price is $35.00.

8 0
3 years ago
Which describes changes to the graph of w(x), when applying the transformation w(x – 19)?
egoroff_w [7]

Answer:

A point (r, s) on the graph of w(x) moves to (r + 19, s).

Step-by-step explanation:

May be wrong, haven’t checked yet

4 0
4 years ago
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