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Bingel [31]
3 years ago
9

a business has recently made some upgrades to their shop that cost them $1,200. Normally, this business has a running cost of $5

0 per hour, and they have an income of $80 per hour. How many hours will it take for this business to recover the costs from the upgrades, and how much income will they have brought in by then
Mathematics
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

9.23 hours to recover the money spent.

Step-by-step explanation:

50+80=130  

130x 9=1170

130x9.23=1200

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Jim needs to rent a car. A rental company charges $21.0 per day to rent a car. and $0.10 for every mile driven. He will travel 2
olga nikolaevna [1]

Answer:

He cant rent the car for 5 days

Step-by-step explanation:

21 * 5 = 105

0.10 * 250 = 25

105 + 25 = 130

He only has 115 to spend

7 0
3 years ago
Read 2 more answers
Choose a college student at random. Decide whether each of the following is a discrete or continuous random variable:
EleoNora [17]

Answer:

1. Discrete

2. Continuous

3. Continuous

4. Discrete

5. Continuous

6. Discrete

Step-by-step explanation:

Continuous:

Real numbers, can be integer, decimal, etc.

Discrete:

Only integer(countable values). So can be 0,1,2...

1. The number of courses the student takes this semester:

You can take 1 course, 2 courses, 3 courses, ...

Only countable values, the student cannot take 2.5 courses, for example. So discrete

2. The student's height:

Can be decimal numbers, for example, 1.8 meters. So continuous.

3. The student's (exact) body temperature:

Can be decimal numbers, for example, 96.7 ºF. Continuous.

4. The number of siblings the student has:

Cannot be decimal.

You can have 0, 1, 2, ..., 20,... siblings

Discrete

5. The (exact) time the student spends doing school work during a week:

Can be decimal, for example, 2.5 hours.

Continuous

6. The number of alcoholic beverages that the student drinks in a typical week

Zero, one, two,...

Discrete

5 0
3 years ago
Which is the most appropriate answer for this problem? Jeremy bought a sandwich for $5.98, a drink for $2.99, and an apple for $
tigry1 [53]

Answer:

A. exactly $9.54

Step-by-step explanation:

First add up how much he bought

Sandwich    5.98

drink            2.99

apple            1.49

                    ---------

                     10.46

Then subtract this from 20

20.00

-10.46

--------------

 9. 54

When you get money back, you get exact change.

8 0
3 years ago
Read 2 more answers
Need help with my trig homework
dalvyx [7]

The 30º-60º-90º triangle is a special case you'd do well to remember, because the legs always occur in the same ratio to one another. As your picture shows (I'm guessing "SL" stands for short leg?), the sides labeled 4, y and x occur in a ratio of 1 to √3 to 2.

This means

sin(30º) = SL/(2*SL) = 1/2

tan(30º) = SL/(√3*SL) = 1/√3

(and also cos(30º) = (√3*SL)/(2*SL) = √3/2, though you don't really need that here)

So in this triangle, x and y satisfy

sin(30º) = 4/x

tan(30º) = 4/y

This comes straight from the definitions of sine and tangent. Then

4/x = 1/2  ==>  x = 8

4/y = 1/√3  ==>  y = 4√3

8 0
3 years ago
What is 2×4÷6 (8×3)-6=Y
Lyrx [107]

To solve this problem, you need to do it in this order: PEMDAS

(Parentheses, Exponent, Multiplication, Division, Addition, Subtraction)


2 × 4 ÷ 6(8 × 3) - 6 = Y    First simplify inside the ( ), and multiply 8 by 3

2 × 4 ÷ 6(24) - 6 = Y        Now multiply 6 and 24

2 × 4 ÷ 144 - 6 = Y          Multiply 2 and 4

8 ÷ 144 - 6 = Y      Divide 8 and 144

18 - 6 = Y         Subtract 18 and 6

12 = Y

5 0
3 years ago
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