Answer:
One is 89 , the other is 33.
Step-by-step explanation:
Set up a system of 2 equations:
x + y = 122
x - 2y = 23 Subtracting:
0 + 3y = 99
y = 33.
So:
x + 33 = 122
x = 122 -33 = 89.
Answer:
x 1 2 6 12 25
f(x) 22 34 82 154 310
f(3)= 46 means that in the third month, the online magazine provider will charge a total of $46.00
Step-by-step explanation:
For finding the missing f(x) values:
Plug in the x-values that are given into the original equation: f(x)= 12x + 10
ex: f(1)= 12(1) + 10 => 22
For finding the missing x value, set the original equation to the given f(x) value
ex: 34 = 12x + 10 => 2
Answer: B. There are infinitely many solutions.
Step-by-step explanation: Hope this help :D
Answer:a=b-\frac{1}{3}a=b−
3
1
Step-by-step explanation:
1 Subtract \frac{1}{3}
3
1
from both sides.
b-\frac{1}{3}=ab−
3
1
=a
2 Switch sides.
a=b-\frac{1}{3}a=b−
3
1
Done
Answer:
About 9 years
Step-by-step explanation:
The rule of 72 tells us that the amount of time it takes to double your investment is 72 divided by the interest rate.
<em>To get an approximation, we round of interest rate of 8.2% to 8% and then use the rule.</em>
Time = 
For deborah's investment of $3000 to go to $6000, it would take around 9 years.
