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brilliants [131]
3 years ago
6

It takes Zion three times as long to paint a room as it does Sanjay. How long does it take each person by

Mathematics
1 answer:
ipn [44]3 years ago
3 0

Answer:

It takes Sanjay 40 minutes and Zion 120 minutes

Step-by-step explanation:

If it takes Sanjay x minutes, it takes Sanjay 3 * x = 3x minutes

Painting together, they spent 30 minutes

1/x + 1/3x = 1/30

4/3x = 1/30

4 * 30 = 3x * 1

120 = 3x

x = 120/3

x = 40 minutes

3x = 3 * 40 = 120 minutes

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Katie earns $12 an hour. Which graph represents the relationship between the number of hours Katie works and her earnings,
klasskru [66]

Answer:

first top left graph? 12×4 is 48 so that puts it about right

7 0
2 years ago
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A model train is 9 centimeters long. The actual engine is 18 meters long. What is the scale of the model? Tracy has a model trai
Umnica [9.8K]

Answer:

1 cm : 2m

1 cm = 2m

118m

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

18 / 9 = 2 : 1

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3 0
2 years ago
If a rectangular region has perimeter p inches and area a square inches, is the region square?
Flura [38]
If this is all the information you have, it is not enough to conclude the region is square. we need more information
8 0
2 years ago
A conjecture and the flowchart proof used to prove the conjecture are shown.
dexar [7]
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8 0
2 years ago
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12а + 7x - За – 2х what's the answer<br>​
Troyanec [42]
9a-5x

step by step explanation:

you can only add and subtract numbers that have the same variables.

12a and 3a are related because there variable is both a.

when u subtract 12a-3a you get the answer of 9a using subtraction.

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7x-2x is 5x using subtraction.

put the expression together:

9a-5x

hope this helps!

give me brainliest if it did plz
8 0
2 years ago
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