Answer:
The interest rate of Jess's account was 7%
Step-by-step explanation:
A = P * (1 + rt)
A = final amount
P = initial principal balance
r = annual interest rate
t = time (in years)
Replacing with the values we know:
A = P * (1 + rt)
8,150 = 5,000 * (1 + r * 9)
8,150/5,000 = 1 + 9r
1.63 = 1 + 9r
1.63 - 1 = 9r
0.63 = 9r
r = 063/9
r = 0.07 = 7%
The interest rate of Jess's account was 7%
Answer:
B
Step-by-step explanation:
Y=7-3x
Y=10 if x=-1
1-*7-3
=10
Answer:
B. 9x10^4
Step-by-step explanation:

Answer:

Step-by-step explanation:
Given


Required

We have:

This gives:

Open bracket

Collect like terms


Answer:
-11/12
Step-by-step explanation:
Add 5/8+3/4 (6/8) which is 11/8 and then get -2/3 - 5/6 which simplifies to -3/2
Multiply -3/2 by 4 to get it to like terms
11/8 / -12/8
Multiply and then simplify.
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