Can you solve y=2x-5 and 4x-y=7 with steps?
Answers
You have already said: y = 2x - 5 ...........(i)
4x - y = 7............(ii)
So anywhere we see, y in equation (ii) we replace it with (2x - 5).
4x - (2x - 5) = 7
4x - 2x + 5 = 7
Note minus sign before the bracket, changes sign inside the bracket.
2x + 5 = 7
2x = 7 - 5.
2x = 2 Divide both sides by 2.
x = 2/2
x =1.
Remember from (i) y = 2x - 5, y = 2*1 - 5 = 2-5 = -3.
Therefore, x = 1, y = -3.
Those are the steps.
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to make shape like (T) symbol
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15 x 10 x 0.5 = 15 x 5 = 75 feet
1 cubic yard = 1 yard x 1 yard x 1 yard = 3 ft x 3 ft x 3 ft = 27 feet?
75/27 = 2.77777778 cubic yards (I think)
Answers
Answer:
1/2
Step-by-step explanation:
The first thing you want to do is get y by itself. Subtract 7 from both sides:
2x-4y=-7
and then subtract 2x ( the goal is to make your equation look like this: y=mx+b):
-4y= -2x-7
Now, y is mostly isolated, all you have to do now is divide both sides by -4 in order for y to be completely by itself:
y=-2/-4x -7/-4
Simplify completely:
y=1/2x+7/4
Now you have your equation you can easily read it as y=mx+b.
** m is slope & b is the y-intercept**
So your slope would be: 1/2
Answers
Answers
Answer:
$768.00
Step-by-step explanation:
Maddie purchased a sofa.
To pay for the sofa, she made a payment of 64 dollars each month for one year.
She paid $64 for 12 months.
The cost of the sofa = 64 × 12
= $768.00
Cost of the sofa would be $768.00.