Y=2x-3 Y=2x-3
X+Y=18 X+Y(2x-3)=18
X+2x=18+3
3x=21
x=21/3 (or 21:3)
x=7
The answer is 39% because a trick to solving the conversion of fraction to percent is use this formula: denominator<span>÷numerator=percent, so when you do that you should get 38.888%(inf), the nearest percent should be 39</span>
Answer:
There are many answers to this question like:
7x6
21x2
84/2
27+15
Step-by-step explanation:
If 30+12=42, all you really have to do is check each answer to see if it either adds up to 42, multiplies to get 42, divides to get 42, or subtracts to get 42.
I believe only two; should we number the performs 1, 2, and 3 and 3 has to go last then the only variations (I can reason that is) is 1,2 and 3 along with 2,1 and 3
Answer: Length is 16 ft. Width is 5 feet.
Step-by-step explanation: Take the information given and write an equation. "Length decreased by 3 is 1" becomes L - 3w = 1 .
"Solve" for L. L= 3w +1
Write another equation for the formula of a perimeter. P=2L + 2w.
Substitute the values for L (from the first "solution" you wrote) and P (42 ft, given).
42 = 2(3w +1) + 2w. Solve this.
42= 6w +2 + 2w
42= 8w +2. Subtract 2 from both sides then divide both sides by 8.
W = 5
Substitute that into the first equation you wrote to get the Length.
L - 3(5) = 1
L -15 = 1. L = 1+15
L = 16