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Serjik [45]
3 years ago
7

You spent the entire summer cutting lawns and saving your money. By the end of the summer, you earned $400. You plan to use this

money over the next year of school. You decided that each month, you will not spend more than 20% of your remaining money. If you spend the full
20%, how much money will you have left by the end of the school year? Complete the table and graph below and describe the equation represented by the graph.
Mathematics
1 answer:
posledela3 years ago
5 0

Answer:

Step-by-step explanation:

400*20%=80spent first month

400-80=320 left * 20%= 64 spent second month

320-64= 256 left and so on

You didn't show the graph, so I don't know how far to go.

You might be interested in
3. What is the area of triangle ABC?
Allushta [10]

Answer:

O D. 56 cm

Step-by-step explanation:

Use the paralell height and multiply it by the base, as shown below:

8*14=112

Divide your current area (112) by 2.

112÷2=56

What your work should look like:

(8*14)÷2=56

Therefore, you have your answer.

7 0
3 years ago
Read 2 more answers
If a cyclist races at 30 miles per hour for 1/2 of the distance of a race, and 45 miles per hour for the final 1/2 of the distan
Natasha2012 [34]

Answer:

  36 mph

Step-by-step explanation:

The appropriate relations are ...

  time = distance/speed

  speed = distance/time

Suppose the race has a total length of 360 miles. Then half the race is 180 miles.

The cyclist's time on the first half is (180 mi)/(30 mi/h) = 6 h.

The cyclist's time on the second half is (180 mi)/(45 mi/h) = 4 h.

The total time is 10 h for the total distance of 360 mi, so the average speed is ...

  (360 mi)/(10 h) = 36 mi/h

_____

The length of the race doesn't matter. The above numbers make the math convenient. The average is computed from ...

  1/((1/2)/30 + (1/2)/45) = 2/(1/30 +1/45) = 2·30·45/(30+45) = 36

This is the <em>harmonic mean</em> of the numbers 30 and 45.

7 0
3 years ago
Which one is the correct answer?
Molodets [167]
The answer selected is the correct answer because all of the other ones are equivalent to each other.
5 0
3 years ago
A person is to install five devices each 6 7/8 inches wide with 3 1/2 inches between switches. how much space will be needed to
solong [7]
Refer to the diagram shown below.

w = 6 7/8 in = 6.875 in, the width of each device.
d = 3 1/2 in = 3.50 in, the space between teo devices.

The total space needed is
D = 4(w+d) + w
    = 5w + 4d
    = 5*6875 + 4*3.5 
D  = 48.375 in  or 48 3/8 in

Answer:  48 3/8 inches or 48.375 inches

6 0
4 years ago
HELP ASAP<br> Expand the expression: 3(n+4)
Studentka2010 [4]

Multiply 3 and n, and 3 and 4.

3n+12

---

hope it helps

4 0
3 years ago
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