There are four sides
6.5 x 4 = 26
Answer:
BD = 78
x = 7
Step-by-step explanation:
As we can see, BC plus CD will be equal to BD. That means we can set up the equation 6x+15+3x = 10x+8. First, we combine like terms to get 9x+15 = 10x+8. Then we can subtract 9x from both sides, to get 15 = x+8. We then subtract 8 from both sides to get x = 7. Since x = 7, we can plug in x for the equation given for BD, 10(7)+8. This will come out to 78.
Answer:
We need to use the compound interest formula where the future amount is determined by
A = P(1 + r/n)nt
A = future or present amount = 5,000,000
P = initial amount invested = 8,000
r = interest rate as a decimal (to be determined)
n = # times compounded in a year = 1
t = # years = 200
5000000 = 8000(1+r/1)1(200)= 8000(1+r)200
(1+r)200 = 5,000,000/8,000
(1+r)200 = 625
1+r = 200√625
1 + r = 6251/200
r = 6251/200 - 1 = 0.0327
r ≅ 3.27%
Step-by-step explanation:
By definition we have the following equation:
t = d / v
Where,
t: time
d: distance
v: speed
For this case we have:
d / 30 + d / 4 = 17
Rewriting we have:
2d + 15d = 17 (60)
17d = 17 (60)
d = 60 mi
Then, the walking time is
t = d / v
t = 60/4
t = 15 hours
Answer:
She walked
t = 15 hours