Since rectangles have two pairs of equal-length sides, for any rectangle with length L and width W, its perimeter is always 2L + 2W (or 2(L + w), whichever you prefer). Here, we're told that the width is 4 feet less than the length. Symbolically, we'd say that W = L - 4. This allows us to write the perimeter entirely in terms of length if we replace our W with the expression on the right side:
2L + 2W = 2l + 2(L - 4) = 2L +2L - 8 = 4L - 8
Sam wants this expression to come out to 52, so we can set up the equality 4L - 8 = 52 and solve for L to find what the length has to be:
Adding 8 to either side, the equality becomes 4L = 60. Diving either side by 4 gives us L = 15, which tells us that the length of the deck should be 15 feet.
Answer:
51 × 5 = L
L = $255
Step-by-step explanation:
First, we can have "L" equal the amount of money Lee saved.
L = amount of money Lee saved
If Jessi saved 5 times as much, <u>you can find out how much money Lee saved by multiplying how much Jessi has by 5</u>.
Jessi has $51, so the equation would be <u>51 × 5 = L</u>
51 × 5 = 255
So, Lee has $255 saved.
If its 5 or 10 you just move the decimal over by one like if it is 20 percent over 10 you would add the decimal and multiply it by the first number in the tens place but if its 5 then you half the discount by the total number
Answer:
y=-1/4x-6
Step-by-step explanation:
The problem wants the form y=mx+b where m is the slope and b is the y-intercept.
The y-intercept in this case is -6 (where the line intercepts the y-axis).
We can use points (0,-6) and (4,-7) to calculate the slope. We just divide the difference in y-values by the difference in x-values.
-6-(-7)/0-4=-6+7/-4=1/-4=-1/4
So the equation of the line is y=-1/4x-6
Probably a bunch, like a lot