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Igoryamba
3 years ago
13

A cable television repairman charges $35 to go to a customer’s home. He charges an additional $20 per hour for the repair. Petra

paid the repairman a total of $85 to come to her home and make a repair. How many hours did it take for the repairs?
Mathematics
2 answers:
valentinak56 [21]3 years ago
5 0

Answer: It took 2 and a half hours for the repairs

Step-by-step explanation:

subtract 35 dollars from the total payed of 85 dollars you're left with 50 dollars we know the repairman charges and extra 20 dollars for every hour he's doing the repairs divide the 50 dollars more she had to pay and divide it by the 20 dollars he charges per every hour he's making repairs and you'll get 2.5 hours

Aleksandr-060686 [28]3 years ago
3 0
35x20=700 then you subtract 700-85=615 that’s ur answer hope this helped☺️
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Given the explicit formula an=3(-4)n-1, what is the sixth term?
prisoha [69]

Answer:

-60

Step-by-step explanation:

3(-4)(5)= -60

7 0
3 years ago
At the beginning of year 1, Matilda invests $450 at an annual simple interest rate of 5%. She makes no deposits to or withdrawal
Nataliya [291]
Given:
Initial investment 450
annual simple interest rate of 5%

Simple interest = Principal * interest rate * term
Simple interest = 450 x 0.05 x 14
Simple Interest = 315

Balance after 14 years: 450 + 315 = $765

We can use compounding interest, compounded once a year.

Total balance = Principal * (1 + interest rate / number of compounding)^(# compounding * term)

Total balance = 450 * (1.05)¹⁴
Total balance = 450 * 1.98
Total balance = 891

Based on these scenarios, the formula that will be used is the second formula, compounding interest formula. The balance at the beginning of year 15 is $891.

I used 14 as the number of years because the problem states at the beginning of year 15. This means 15 has not yet begun and interest is not yet earned.
5 0
3 years ago
Read 2 more answers
Sandy make linen scarves that are 7/8 of a yard long. How many scarves can she make from 156 feet of fabric?
Studentka2010 [4]
7/8 of a yard is 3*7/8 or 21/8 feet.
Divide the number of feet of fabric by the number of scarves she can make
156/(21/8)= 59.42 scarves.
But she cant make half a scarf, so she can only make 59 scarves,
Hope this helps.
4 0
3 years ago
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You deposit 4000 in an account earning 8% interest compounded monthly. How much will you have in the account in 5 years?
Juliette [100K]

Answer:

The total amount you will have in your account=5,959.38

Step-by-step explanation:

The total amount one will have in there account when the interest is compounded annually can be expressed as;

A=P(1+r/n)^nt

where;

A=future value of investment after time t

P=Principal amount based on initial deposit

r=Annual interest rate

n=number of times the interest is compounded annually

t=number of years the investment is deposited

In our case;

P=4,000

r=8%=8/100=0.08

n=12

t=5

Replacing;

A=4,000(1+0.08/12)^(12×5)

A=4,000(1.007)^60

A=5,959.38

The total amount you will have in your account=5,959.38

4 0
3 years ago
What is the area of AABC? <br>Area = ​
LuckyWell [14K]

Step-by-step explanation:

answer is 28 sq units ... height comes out to be 4 and base be 14 ..then area of triangle = 1/2 x base x height = 1/2 x 4 x 14 so area is 28 sq units

8 0
3 years ago
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