Let x be the width so the length will be 2x-4 . The perimeter can be found by the equation x+x+(2x-4)+(2x-4)=58. Notice I repeated the length and the width twice because you know there are two lengths and two widths in a rectangle, so continue solving by combining like terms 6x-8=58 the add 8 to both sides 6x=66 then divide both sides by 6 to obtain x=11, that's the width but they are asking you for the length so we said the length could be found by the equation 2x-4, now plug in the 11, 2(11)-4 and solve 22-4 equals 18cm which is the length.
48 points gained in those 3 days.
Subtract 220 with 48, then add 96. Last step would be subtracting 220 with the amount they have now in those 3 days to find how much points the stock market gained in those 3 days.
Subtract 220-48.It‘ll be 172.
Add 172 with 96. 172+96=268.
Subtract 268 with how much points the stock market had 3 days ago. 268-220.
It would be about 48 points gained.
Answer: y = 2x+11
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Explanation:
The given line y = 2x-4 has a slope of m = 2 as it is in the form y = mx+b
m = slope
b = y intercept
Anything parallel to the given line will also have a slope of m = 2 as well. Parallel lines have equal slopes.
The given point is (x,y) = (-3,5) so x = -3 and y = 5 pair up
We will plug m = 2, x = -3 and y = 5 into the equation below and solve for b
y = m*x+b
5 = 2*(-3)+b
5 = -6+b
5+6 = -6+b+6 ... add 6 to both sides
11 = b
b = 11
Because m = 2 and b = 11, this means we have y = mx+b update to y = 2x+11 which is the final answer