B - 3A = 2
3B - 6A = 12
(2)B - (6)A =4
3B - 6A = 12
Subtract
-B = -8
B = 8
Plugin 8 for B
8 - 3A = 2
8 = 3A + 2
6 = 3A
2 = A
(Double checking)
3(8) - 6A = 12
-6A = 12-24 = -12
- 6A = -12
Divide by -6
A= 2
It works
A = 2. B = 8. Hope this helps
TOm earned 173 dollars Last week working for 25 hours.
Now, if you're asking about his earnings, it's 173 dollars.
But if you're asking about his hourly rate.Let's find out:
=> 173 / 25 = 6.92 dollars per hour.
Answer: d3< d10>
Step-by-step explanation:
Answer:
Dude this is algebra.
Step-by-step explanation:
Answer:
I(Interest) = $6.25
Step-by-step explanation:
The formula for Simple Interest
A = P(1 + rt)
Where
A = Amount after t years
P = Principal, initial amount invested = $125
r = Interest rate = 2.5%
t = time in years = 2 years
Step I
We the interest rate to a decimal
r = R/100 = 2.5%/100 = 0.025 per year.
Step 2
A = 125(1 + (0.025 × 2))
A = $131.25
The Amount received after 2 years = $131.25
The amount of interest Sarah received after 2 years
I = A - P
I = $131.25 - $125
I = $6.25