The length of rectangle is 15 feet and width is 7 feet.
Step-by-step explanation:
Given,
Width of rectangle = w
Length of rectangle = 2w+1
Perimeter = 44 feet
Perimeter = 2(Length+Width)
Dividing both sides by 6
The width of rectangle is 7 feet.
Length of rectangle = 2(7)+1 = 14+1 = 15 feet
The length of rectangle is 15 feet and width is 7 feet.
Keywords: rectangle, perimeter
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Answer:
$26.25
Step-by-step explanation:
I'm not completely sure if I did this right because I haven't used this in a while, but let's say sodas are x and hot dogs are y. The first equation would be 3x+4y=15 and in order to solve for x or y you have isolate them to seperate sides because if there is not letter on the other side, it will just end up being zero... if that makes sense. subtract 3x so the equation is now 4y=15-3x and divide everything by 4, to make the equation y=3.75-3/4x. Do the same thing but subracting the 4y and dividing by 3 to get the x value. Now we're left with y=-3/4+3.75 and x=5-4/3y (or x=5-1 1/3y). remember that x=sodas and y=hotdogs. The equation we need to create has seven hot dogs and no sodas, so we simply need to take the equation for y and substitute y for 7 because we have 7 hot dogs and y is the symbol used for hot dogs. This equation would now be 7(-3/4x+3.75) because hotdog=y=-3/4x+3.75, so hotdog=-3/4+3.75 and we have 7 hot dogs so you just multiply that by 7
Answer:
90*
Step-by-step explanation:
I'm going to assume that you are trying to find the two numbers. Based on the information in the problem, we can create the following equations (where and are the two numbers):
We have a systems of equations. In this case, it would be easier to use elimination by adding vertically. This produces the result:
To find , substitute the value for into one of the earlier equations:
The two numbers are 12 and 18.