MATHEMATICS HIGH SCHOOL

Sally needs to have some drywall and insulation work done in her house. She has received a quote from a professional drywall contractor to complete her repairs for $1,200. Her neighbor Steve says he can complete the same job for $800. Sally could use a credit card to pay the contractor, but Steve can only accept cash. Sally’s credit card has a 14% APR for credit purchases and a 32% interest rate for cash advances. Expecting to pay $50 of the principle plus appropriate interest each month, Sally estimates that it would take her 24 months to pay off the contractor balance and 16 months to pay off the cash advance balance. In the end, would it be cheaper for Sally to hire the contractor or her neighbor to complete the repairs?

Answers

Answer 1

Answer:

Answer:

Sally can chose Steve to work with.

Step-by-step explanation:

We will calculate EMI for both the contractor and Steve.

Contractor:

EMI formula = $(p*r*(1+r)^(n) )/((1+r)^(n)-1 )$

p = 1200

r = 14/12/100=0.0116

n = 24

Putting values in formula we get,

$(1200*0.0116*(1.0116)^(24) )/((1.0116)^(24)-1 )$

= $57.62

So, for $1200 at 14% for 24 months, Sally would have to pay $57.62 per month, or 57.62*24 = $1382.88 after 24 months.

Steve:

Similarly putting these values : (p=800, r=32/12/100= 0.0266 and n=16) in above formula we get, $62.08 per month or 62.08*16= $993.28 after 16 months.

Hence, even with the higher interest rate, Sally would pay:

1382.88-993.28 = $389.60 less if she chooses to work with Steve.

Though the monthly payments are almost same for the given timelines, still Sally can chose Steve.

Answer 2

Answer: It said the correct answer was the contractor

Related Questions

"Twenty-eight is more than four times another number" can be shown by the inequality 28 > 4n. Select the values of n which could possibly make this a true statement.choose all answers that are correct..... A. n>7 B.4 C.8 1/3 D7
The The graph of g(x) is the result of translating the graph of f(x) = 3x six units to the right. What is the equation of g(x)?g(x) = 3x – 6g(x) = 3x + 6g(x) = 3x – 6g(x) = 3x + 6Mark this and return
What is the equation in slope-intercept form of the line that passes through the points ( -4 , 2) and (12, 6)?Group of answer choicesy = 0.25x − 4.5y = 4x − 42y = 4x + 18y = 0.25x + 3
What is the x-intercept1/2x - 3y = 8
Consider the population of florida , the area of colorado, and the flight time from philadelphia to san francisco, which of these has a value that varies.

The model shows the expression 20 + 16.Which expression is equivalent to this sum?
O4(5) + 4
4+5+4
O4(5+4)
5(4+4)

Answers

The third one. O4 (5+4)

Explanation:
4 (5+4)
4 times 5 is 20 which added to 4 times 4 which is 16 is the same thing asked before. 20+16. So the answer is the third one

Answer:

4 (5 + 4)

Step-by-step explanation:

20 + 16

= 4 (5 + 4)

= 4(5) + 4(4)

= 20 + 16

therefore, the answer is 4 (5 + 4)

What is y?

Enter your answer in the box

Answers

The answer is 97, because when you add up 42 and 55 you get 97. Then you subtract that by 180 because a triangles angles add up to 180. 180-97=83. Z=83. Z and y are supplementary to eachother, so therefore 180-83= 97. Supplementary means they add up to 180.

how to draw an arrow diagram that relates a number (0to9) to the number of lit segments required to display that number?

Answers

The numbers on electronic displays ... like on alarm clocks or digital
watches ... are made out of what's called "7-segment" displays.

For each digit, there's a set of 7 tiny LED's that are laid out
something like this: _
/_/
/_/

Then, all of the digits from 0 to 9 can be made just by lighting up
some of the segments, and keeping the rest turned off.

This question is asking for a table that shows how many segments
are lit up to make each digit ... not which ones, but just how many.
This is something the design engineers want to know, so that they
can be sure to provide enough power inside the clock to light up
all the digits.

Look at the picture I attached. It shows all the digits, 0 to 9, the way
they look in 7-segment displays, and on the right side, the number of
segments that are lit up to make each digit.

I think this is something like what the question is asking for.

Factor the expression:
280z - 25y - 30
PLS ASAP

Answers

Answer:

$5(56z - 5y - 6)$

Step-by-step explanation:

Forst step is finding a common factor, you can do this easily by looking at the ones digit. All 3 values end in 0 or 5, so a factor is definately 5.

We now divide all values by 5.

$280z / 5 = 56z \n (- 25y) / 5 = ( - 5y) \n ( - 30) / 5 = ( - 6)$

Once you get a prime number after factoring, that is the GCF, Greatest Common Factor. We can make an equation like what is below to show oir factored answer.

$5(56z - 5y - 6)$

A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student in her ballet class. In which way could the results of her survey be most improved?

Answers

Since you have not presented any choices wherein we can determine the best answer, I will go on and share my thoughts on how she could improve the results of her survey.

Since she just surveyed her ballet class, she should opt for surveying on other classes with other genres. This would entail reliability and validity and eliminate bias about the results.

Answer:

A) She could sample an equal number of students in each type of dance class.

B) She could sample a proportional number of students in each type of dance class.

C) She could sample one student in each type of dance class.

D) She could sample one teacher from each type of dance class.

If you can please help me with this question~ the question is the image :)