I’m not exactly sure what the question is asking, but assuming that the equation is r=10b^2, then the answer would be r=40.
Let Edy's money be x.
Lucy: 35% more --- (135/100) x
x + (135/100) x = 206.80
(47/20)x = 206.80
47x = 206.8 x 20
47x =4136
x = 88
Edy saved $88.
Lucy saved (135/100)(88) = $118.80
Answer:
n=4
Step-by-step explanation:
step 1: Simplify both sides of the equation.
4n−1=6n+8−8n+15
4n+−1=6n+8+−8n+15
4n−1=(6n+−8n)+(8+15)(Combine Like Terms)
4n−1=−2n+23
4n−1=−2n+23
Step 2: Add 2n to both sides.
4n−1+2n=−2n+23+2n
6n−1=23
Step 3: Add 1 to both sides.
6n−1+1=23+1
6n=24
Step 4: Divide both sides by 6.
6n/6=24/6
P=710ft
Side AB=310 ft
Side DC=310 ft
Side AD=side BC
P of rectangle is AB+DC+AD+BC
710=310+310+2AD
710=620+2AD
710-620=620+2AD-620
90=2AD
90/2=2AD/2
45=AD
Both sides are parallel so they are same
So other 2 sides are 45ft each.
The rate of change=250-125/2-1
=125
the initial value is 700