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Allushta [10]
3 years ago
15

Pls help it is too hard​

Mathematics
2 answers:
Neko [114]3 years ago
6 0

Answer:

x = – 2 —> y = 4.5

x = -1 —> y = 4

x= 0 —> y = 3.5

x =1—> y = 3

x=2 —> y=2.5

x=3 —> y= 2

Step-by-step explanation:

x = -2 —> x + 2y = 7 —> -2 + 2y = 7 —> 2y=7+2—> 2y = 9

y= 9/ 2 —> y = 4.5

x = -1 —> -1+2y =7 —> 2y =7+1 —> 2y=8 —> y=8/2 —> y= 4

x= 0 —> 0+2y=7 —> 2y=7 —> y =7/2 = 3.5

x= 1—> 1+2y=7—>2y =7-1—> 2y=6 —> y = 3

x =2—> 2+2y=7 —> 2y= 7-2—> 2y = 5 —> y=5/2=2.5

x=3—> 3+2y=7 —> 2y=7-3—> 2y=4 —> y=2

ozzi3 years ago
3 0
U have to substitute in the values of x to get the values of y

answers in order from left to right:
4.5, 4, 3.5, 3, 2.5, 2

ex of solving process:
x+2y=7
(-2)+2y=7
2y=9
y=4.5
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Work out the area of the rectangle using a calculator and giving your answer as a mixed number. 4 1/5 cm and 1 4/9 cm.​
charle [14.2K]

Answer:

6\frac{1}{15} cm²

<u>area of rectangle</u>:

length * width

4\frac{1}{5}* 1\frac{4}{9}

\frac{21}{5} *\frac{13}{9}

\frac{7}{5}  * \frac{13}{3}

\frac{91}{15}

6\frac{1}{15}

8 0
2 years ago
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Because the formula for the area of a rectangle is length times width, all you have to do is multiply 15 by 15 and it should get you 225 as your answer
7 0
3 years ago
What is the equation of this line in slope-intercept form?
Elis [28]

Answer:

y=-1/2x+2

Step-by-step explanation:

for x-intercept

put y=0

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for y-intercept

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7 0
3 years ago
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Line m passes through points (-3,5) and (1,-2) what is the slope of line m?
yarga [219]

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7 0
3 years ago
How do you solve the following equation <br> : X/-3 + 2=4
goblinko [34]

Answer:

For this equation you be inverse operation giving you the answer -6

further information down below :)

Step-by-step explanation:

Your goal for this is to isolate the variable which is x.

First, find the operation opposite of addition which is subtraction

When you add that operation to both sides with the constant(2)

2 and 2 cancel each other out, but to the for the term(4) 4-2=2

after that you have your new term which is x/-3=2

You do the same thing but to in division because the opposite of multiplication is division in this case you multiply -3 to both sides -3*-3 cancel each other out, now you have-3*2= negative times a positive equal negative in anyway so, overall you get -6.  

<em>To check:</em>

you do the full equation now that you have isolated the variable, you now can do the operations normally which are. -6/-3=2 because when you divide a negative by a negative you get a positive end out with 2+2=4 which is correct and match the sum.

This means that our answer is correct :)

5 0
3 years ago
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