Width=x
length=2x+5
perimeter of a rectangle=2(length)+2(width)
We can suggest this equation:
88=2(2x+5)+2x
88=4x+10+2x
6x=88-10
6x=78
x=78/6
x=13
width=x=13
length=2x+5=2(13)+5=26+5=31
Answer: the width would be 13 cm.
240................................ It had to be 20 characters so sorry for the large answer <span />
Answer:
$7.45
Step-by-step explanation:
If it's constant , divide the amount he earns by the amount of hours. It should be the same every time.
44.70 divided by 6=7.45
and so on
You can use the distance equation.. d = rt
d = distance = 645
r = rate = 215 mph
t = time = ???? find the time
645 = 215t
645/215 = 215t / 215
3 = t
t = 3
It took 3 hours
4.70, all the others can be simplified to 4.07 by taking away the zeroes after the 7 because they are not significant, The one before the 7 stays because it is significant as it is holding the tenths place value.
