MATHEMATICS HIGH SCHOOL

If mark bought a plasma TV for $2499 on the installment plan and paid 101.50 for 28 months, how much did he pay in finance charges?A. 343
B. 400
C. 249
D. 101.50

Answers

Answer 1
Answer: i think answer is a 101.50×28 =2842 2842-2499=344

Related Questions

PLEASE HELPP ME Solve the inequality | f | > 4.
If f(1)=3 and f(n)=-2f(n-1)+ 1, then f(5)=
How do you do #1- 3x + y = 17 4x + y = 18 find for x and y
What is the factored form of the expression? 3x 2 + 8x – 16A. (3x + 4)(x – 4) B. (3x + 4)(x + 4) C. (3x – 4)(x – 4) D. (3x – 4)(x + 4)
The decimal -2.97 is the solution to which subtraction problem?

(10y^3+20y^2+55y)/5y

Answers

( 10y^3 + 20y^2 +55y ) / 5y
= 2y^2 + 4y +11

And then depending on if the equation is set to zero in the problem, just factor or use the quadratic formula on the quadratic equation that is left.

Answer:

2y^2+4y+11

Step-by-step explanation:

Which value of x makes the following equation true?4(x - 1) = -4x + 60

A. 8
B. 12
C. 11
D. 9

Answers

The easiest way is to just solve the equation.
4x - 4 = -4x + 60
4x + 4x = 4 + 60
8x = 64
x = 8

A slower way to do this is to plug each of the numbers into the equation to see which makes the equation is true.
So for A.
4(8 - 1) = -4(8) + 60
4(7) = -32 + 60
28 = 28
Fortunately, this is true, so A is the answer and you don't have to try the other options.
It would be A because if you plug in 8 for x on each side you get 28 which makes the equation true

If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?A. P
B. Q
C. R
D. S
E. T

Answers

P,Q,R can't be 0, because their product is nonzero. Either of S and T could be 0, but the third one only works if S is 0.

Shawn and Dorian rented bikes from two different rental shops. The prices in dollars, y, of renting bikes from the two different shops for x hours is shown. Shop Shawn used: y = 10 + 3.5x Shop Dorian used: y = 6x If Shawn and Dorian each rented bikes for the same number of hours and each paid the same price, how much did each pay for the rental?

Answers

You need to find the solution to the system of equations:

y = 10 + 3.5x
y = 6x

Then, both right sides are equal to each other:

6x = 10 +3.5x

6x - 3.5x = 10

2.5x = 10

x = 10/2.5 = 4

And:

y = 6(4) = 24.

Answer: They both rented the bikes for 4 hours and paid $ 24.
If you would like to know how much did each pay for the rental, you can calculate this using the following steps:

y = 10 + 3.5 * x
y =  6 * x
_____________
10 + 3.5 * x = 6 * x
10 = 6 * x - 3.5 * x
10 = 2.5 * x
x = 10 / 2.5
x = 4 hours

y =  6 * x = 6 * 4 = 24 dollars

y = 10 + 3.5 * x = 10 + 3.5 * 4 = 24 dollars

They both paid 24 dollars for 4 hours.

Which information is needed to show that a parallelogram is a rectangle?

Answers

If you know for a fact that it's a parallelogram, then you only
need to show that any one angle is a right angle (90 degrees),
and that will prove that it's a rectangle.
If a parallelogram has right angles (angles with measures of 90 degrees) for all its angles, it is a rectangle.

Orlando invested $16,000 in an eight-year CD bearing 6.5% interest, but needed to withdraw $3,500 after five years. If the CD’s penalty for early withdrawal was one year’s worth of interest on the amount withdrawn, when the CD reached maturity, how much less money did Orlando earn total than if he had not made his early withdrawal?a.
$227.50
b.
$682.50
c.
$910.00
d.
$455.00

Answers

B is the correct answer. Firstly, you have to work out the amount of interest earned per year by multiplying the sum invested ($16,000) by the interest rate (6.5%, or 0.065). Then multiply the result by eight to find out how much money Orlando would get when the CD reaches maturity if he doesn't withdraw any money. To calculate interest when money is withdrawn, multiply the annual interest by five, to work out how much interest Orlando earns in the first five years. Then work out the interest on the reduced investment ($16,000 - $3,500) in the same way and multiply by three to calculate the remaining three years' interest. Add the total interest for three years to the total interest to five years, which will tell you how much interest Orlando recieves when he makes the withdrawal. Finally, you can now take this away from the interest he would have made if he had not made a withdrawal, and this will tell you the difference.

The real correct answer is C. $190.00
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