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1 year ago

Paul and Krystal spent 1 1/2 hours at the pool

Mathematics

1 answer:

Tamiku [17]1 year ago

4 0

Answer:

Paul and Krystal spent 13 hours at the pool

Step-by-step explanation:

I Thank

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Juan says that 8, 1 3/4, and -12 are all integers. Is he correct? Explain your answer. Please help me fast

monitta

No, he is not right.

Integer is a number that can be written without a fractional component, and 1 3/4 doesn't.

Here's an image for you to better understand.

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3 years ago

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A robot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. Moving forward at this same constant speed, it

makvit [3.9K]

Answer:

The length of the hallway is 10 m.

Step-by-step explanation:

Given:

Time taken to cover 1 km = 2.5 hours

Distance covered in 2.5 hours = 1 km

Therefore, speed of robot = $\frac{\textrm{Distance}}{\textrm{TIme}}=\frac{1}{2.5}=0.4\ km/h$

Now, speed is constant.

Now, time taken to cover the length of hallway = 90 s

Speed of the robot = 0.4 km/h

Converting 0.4 km/h to m/s, we multiply by the factor $\frac{5}{18}$ . This gives,

$0.4\times \frac{5}{18}=\frac{1}{9}\ m/s$

Now, distance of the hallway is equal to the product of speed and time. So,

Distance of hallway = Speed $\times$ Time

Distance of hallway = $\frac{1}{9}\times 90=\frac{90}{9}=10\ m$

Therefore, the length of the hallway is 10 m.

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2 years ago

List all the perfect cubes up to 1000 and their cube roots.

DiKsa [7]

Hello from MrBillDoesMath!

Answer:

1^3 = 1

2^3 = 8

3^3 = 27

4^3 = 64

5^3 = 125

6^3 = 216

7^3 = 343

8^3 = 512

9^3 = 729

10^3 = 1000

Thank you,

MrB

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2 years ago

Hello i need help on this pls <br>

zvonat [6]

I think it says thirteen divided by thirteen and it will equal thirteen with a remainder of two hope this helps you out

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2 years ago

about 240,000 people live in a 3-mile radius of a citys town hall. find trhe population density in people per square mile

lara [203]

Answer:

80000

Step-by-step explanation:

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2 years ago