Answer:
y = 1.2x + 770
Step-by-step explanation:
y = m*x + b
Equation One
y = mx + b
1370 = m*500 + b
Equation Two
y = mx + b
1730 = m*800 + b
Solution
1730 = 800*m + b
1370 = 500*m + b Subtract. The b's cancel
360 = 300 * m Divide both sides by 300
360/300 = m
1.2 = m
Now use the second equation to solve for b
y = 1730
x = 800
1730 = 1.2*800 + b
1730 = 960 + b Subtract 960 from both sides
b = 770
84=-19+a/4
+19+19 {add 19 to both sides
65=a/4
*4 *4 {multiply by 4 to isolate the variable
[260=a]
Answer:
3388 units^3.
Step-by-step explanation:
The volume of a pyramid = 1/3 * area of the base * altitude.
So here we have Volume = 1/3 * 84 * 11^2
= 3388.
The balance of the loan at 14 months= $10,561.25
It would take a total 23 months to pay off the loan.
The total amount of money paid for the car is = $9,052.5
<h3>Calculation of loan compounded monthly</h3>
The total loan for the car = $8,500
The rate at which the loan is compounded monthly is
= 6.5%
The monthly payment for the loan = $390
- To calculate the balance of the loan at 14 months;
Find the simple interest
= P×T×R/100
= 8,500 × 1 × 6.5/100
= 55,250/100
= $552.5
If 12 months = 8,500 + 552.5
14 months = X
make X the subject of formula,
X = 14 × 9052.5/12
X= 126,735/12
X = $10,561.25
- To calculate the period of time it will take to pay off the loan
The amount paid monthly = $390
The amount to be paid for the loan with interest = 8,500 + 552.5 = $9,052.5
If 1 month = $390
× month = $9,052.5
Make X the subject of formula,
X = $9,052.5/$390
X= 23 months
The total amount of money paid for the car is already calculated which is through the simple interest
= P×T×R/100
= 8,500 × 1 × 6.5/100
= 55,250/100
= $552.5
- Total amount of money paid for the car
= 8,500 + 552.5
= $9,052.5
Learn more about simple interest here:
brainly.com/question/20690803
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