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patriot [66]
3 years ago
13

It takes 2/3 of an hour to paint 2/5 of a room. How long does it take to paint 2/5 of a room?

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
8 0

It will take 40 minutes.

To solve, divide 60 by 3. 60 is how many minutes there are in a minute. 3 is how long it takes to paint 2/5 of the room. We do not need to use the number 2/5 in this situation. Now back to 60 divided by 3. The answer is 20 minutes. Now multiply 20 by 2 to get 2/3 of an hour. Therefore, it takes 40 minutes to paint 2/5 of a room.

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Add using the number line. ​ −1.2+2.9 ​ Select the location on the number line to plot the point. -2.52.5-2-1.5-1-0.500.511.52.
Thepotemich [5.8K]

Answer:  The number gotten from the number line is 1.7,

Kindly find an attached diagram to indicate the number line.

Step-by-step explanation:

DEFINITION: <em>The number line is a straight line with numbers found at equal intervals and it can extend to negative and positive infinity respectively. </em>The number line provides a means of abstraction for Real Numbers and can be used for adding and subtracting.

Kindly find the attached the diagram showing the number line. Refer to the diagram to understand how the answer was derived.

<u>STEP 1:</u> Draw a straight line to denote the number line and attach two arrows at the extremes of the line (looking in opposite directions) to indicate the continuation of numbers extending to infinity and negative infinity respectively.

<u>STEP 2:</u> Find a point to denote as Zero (0) as the midpoint to start the calibration, then take equal intervals of distance to denote number points (as is shown in the drawn attachment).

Denote the intervals -2.5, -2.0, -1.5, -1.0, -0.5, 0, 0.5, 1, 1.5. 2. 2.5. 3.0

<u>STEP 3:</u> Draw small intervals of -0.1 and 0.1 for both the positive and negative sides of the number line.

<u>STEP 4:</u> Now, choose either -1.2 or 2.9,

IF -1.2 is chosen count two -0.1 intervals left of -1.0 and mark a circle indicating -1.2, then count right 29 intervals (denoting 2.9) to find the answer which is 1.7.

IF 2.9 is chosen count four 0.1 intervals right of 2.5 and mark a circle indicating 2.9, then count left 12 intervals (denoting -1.2) to find the answer which is 1.7.

7 0
3 years ago
A varies directly as b. If A = 3 when b = 24, find b when A = 10
Lelechka [254]
240................................ It had to be 20 characters so sorry for the large answer <span />
4 0
3 years ago
A plane flies over city A and reaches city B 115 miles away in 15 minutes.find the speed of the plane in the miles per hour assu
dybincka [34]
Hopefully i helped you.
7 0
4 years ago
Read 2 more answers
What is the surface area of the rectangular prism, if its length is 17 meters?
wel

     182 m^ (Third answer) because it is not the volume

2 rectangles measuring 17x2               2(17x2)= 2x34 = 68 m^

2rectangles measuring 17x3                  2(17x3)=2x51+102 m^

2rectangles measuring 3x2                     2(3x2)=2x6=12 m^

    TOTAL---------------------------------------------------------182 m^

8 0
3 years ago
A train travels 68 kilometers in 2 hours, and then 64 kilometers in 3 hours. What is its average speed
skad [1K]
Average speed is the distance traveled by an object in total and divided by the amount of time an object covers the distance. The formula is -
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Therefore, the train's average speed is 26.4km/hr.
5 0
3 years ago
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