The length of a rectangle is five centimeters more than twice its width. The perimeter is 100 centimeters. Use Guess and Check t o find out how long and how wide the rectangle is.
1 answer:
Guessing and checking isn't the best solution, so I will demonstrate it another way.
Let x be the width. We know that the length is then 2x+5.
So, 2(x+2x+5)=100
3x+5=50
3x=45
So, x=15.
Therefore, the rectangle is 15 centimeters wide.
Guessing and checking could also work. Once you plug in a value, if it is less than 100, than increase you number. The other way works as well.
You might be interested in
Answer:
0
Step-by-step explanation:
anything times 0 is 0
I hope this helps you x=2 f (2)=(2+1)^2=3^2=9
Answer: -11 divided by 4 , 11 divided by -4 , -11/4 , 11/-4 ,
Step-by-step explanation:
I got it right on iready
After every month's withdrawals, 4/5 of the original amount at the start of the month will remain. The amount at the start of every month will change. Thus: an = 4/5 (an-1) ; where a1 = 500.
Answer:
The answer is: 5/20 or a 25% chance