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patriot [66]
3 years ago
13

3x - y = 2

Mathematics
2 answers:
artcher [175]3 years ago
8 0

Given.

3x - y = 2

Substitute x - 1 for variable y.

3x - x - 1 = 2 ← Resulting equation

Ivahew [28]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

Given

3x - y = 2

Substitute y = x - 1 into the equation

3x - (x - 1) = 2

3x - x + 1 = 2 ← simplify left side

2x + 1 = 2 ← required equation after substitution

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Doug took 180 photos during his vacation. He took 2/3 of photos during
pogonyaev

<u>Answer:</u>

66 pictures

<u>Step-by-step explanation:</u>

180 ÷ 3 = 60      60 x 2 = 120

120 = 2/3. He took <em><u>120 pictures on the first day </u></em><em><u>of his vacation.</u></em>

120 ÷ 4 = 30    30 x 1 = 30

30 = 1/4. <em><u>He took </u></em><em><u>30 pictures of landscapes</u></em>

120 ÷ 10 = 12     12 x 3 = 36

0.3 = 36. <em><u>He took </u></em><em><u>36 pictures of people.</u></em>

36 + 30 = 66 pictures.

<em><u>He took 66 pictures of landscapes and people.</u></em>

Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

7 0
3 years ago
If you double radius of a circle, how does this affect the area of the circle
arlik [135]
It would quadruple the area of the circle.
5 0
3 years ago
Wich rule would result in a translation of 2 units left and 3 units up?
tresset_1 [31]

Answer:

y to the sky and x to the left

Step-by-step explanation:

y axis and x axis

8 0
3 years ago
In 1978, the amount of earnings required to earn one Social Security credit was $250. Thirty years later, in 2008, this amount w
vagabundo [1.1K]

Answer:

the percentage increase is 360%

Step-by-step explanation:

The computation of the increase in percentage is shown below;

Given that

SOcial security credit as on 1978 is $250

And, the social security tax as on 2008 is $1,150

Now based on the above information

The percentage increase is

= ($1,150 - $250) ÷ ($250)

=  360%

Hence, the percentage increase is 360%

3 0
3 years ago
Derek owns a landscape business. He charges a fixed fee of $30 plus $1 per 1,000 square feet of lawn mowed. Derek's earnings (in
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Let f(x) represents function that tells us Derek's earning depending on square feet of lawn mowed which is x.

First we construct function:

f(x) = x/1000 * 1 + 30

x/1000 is a number that tells us the number of mowed units. for x = 1000 square feet he earns 1 dollar that is why we have to divide x by 1000.

if he earned 204 first week that means that x =:
204 = x/1000 + 30
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if we check for each week that he worked we will see that square footage of the lawns he mowed match forth (last) option.

Answer is D.
8 0
3 years ago
Read 2 more answers
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