Answer:
x = -3
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First, subtract 6 from both sides:
6x + 6 (-6) = -12 (-6)
6x = -12 - 6
6x = -18
Isolate the variable, x. Divide 6 from both sides:
(6x)/6 = (-18)/6
x = (-18)/6
x = -3
x = -3 is your answer.
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Answer: the balance after 9 years is
$235.8
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1 + r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = $100
r = 10% = 10/100 = 0.1
n = 1 because it was compounded once in a year.
t = 9 years
Therefore,.
A = 100(1 + 0.1/1)^1 × 9
A = 100(1 + 0.1)^9
A = 100(1.1)^9
A = $235.8
Answer:
y = 40x + 35
Step-by-step explanation:
Let x represent each month of service in the equation
Since it is $40 for each month, the price for each month can be represented by 40x.
The $35 fee will represent the y intercept, and will be added to 40x in the equation.
Put this together in the equation y = mx + b
y = 40x + 35
So, the linear equation to model the situation is y = 40x + 35
Answer:
8 to 27
Step-by-step explanation:
Answer:
8 months
Step-by-step explanation:
You: $20 + 15.50 per month I Your friend: $88 + 7
First month: 35.50 I First month: 95.00
Second month: 51.00 I Second month: 102.00
Third month: 66.50 I Third month: 109.00
Fourth month: 82.00 I Fourth month: 116.00
Fifth month: 97.50 I Fifth month: 123.00
Sixth month: 113.00 I Sixth month: 130.00
Seventh month: 128.50 I Seventh month: 137.00
Eighth month: 114.00 I Eighth month: 114.00
