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2 years ago

A plumber has a piece of pipe that is 3-meter long. He needs to cut it into sections that are

Mathematics

2 answers:

Tresset [83]2 years ago

5 0

Answer: it can be cut into 30 sections
Explanation: 1 meter = 100 cm
3 meters= 300 cm
300/10= 30 sections

Natali5045456 [20]2 years ago

3 0

It will be able to be cut into 30 sections.
3 meters = 300 centimeters. 300 centimeters divided by the length of each section, 10 centimeters which equals 30 sections.

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I need help with this math problem may someone please help me

KonstantinChe [14]

Answer:

I got $\frac{-8}{7}$

Please correct me If I'm wrong

Step-by-step explanation:

$\frac{b-c}{a}$

$\frac{-3-5}{7}$

$\frac{-3-5}{7}= \frac{-8}{7}$

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3 years ago

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Mice21 [21]

Answer:

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Step-by-step explanation:

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4 years ago

Martinus Kupier set a record when he ice skated for 24 h at an average of 14.2 mph. How far did he skate?

kow [346]

Martinus Kupier skate a distance of 340.8 miles, at an avarage of 14.2 mph for 24 hours

Step-by-step explanation:

The given is,

Martinus Kupier skated for 24 hours at an average rate of 14.2 mph

Step:1

From the given the time and average rate is obtained,

Time = 24 hours

average rate = 14.2 mph

Step:2

To find the total length of skated at 24 hours

Length = Average rate × Time

= 14.2 × 24

= 340.8

Length = 340.8 miles

Result:

Martinus Kupier skated a distance of 340.8 miles at an average rate of 14.2 mph for 24 hours.

5 0

3 years ago

Which of the following is the image of D after a rotation of 90 degrees about the origin

Goryan [66]

Answer: The second pic.

Step-by-step explanation: First is just the same, and the rest are bigger then 90.

6 0

3 years ago

Julia rides her horse 18 km with a constant speed of 6km/hr and another 24 km with a constant speed of 12 km/hr. What is her ave

nlexa [21]

Answer:

8.4 km/hr.

Step-by-step explanation:

We have been given that Julia rides her horse 18 km with a constant speed of 6 km/hr.

Let us find the time taken by Julia to cover a distance of 18 km.

$\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

$\text{Time taken to cover 18 km}=\frac{18\text{ km}}{\frac{6\text{km}}{\text{hour}}}$

$\text{Time taken to cover 18 km}=\frac{18\text{ km}}{6}\times\frac{\text{hour}}{\text{km}}$

$\text{Time taken to cover 18 km}=\frac{18}{6}\times\text{hour}$

$\text{Time taken to cover 18 km}=3\text{ hour}$

We are also told that she rides another 24 km with a constant speed of 12 km/hr.

Let us find the time taken by Julia to cover a distance of 24 km.

$\text{Time taken to cover 24 km}=\frac{24\text{ km}}{\frac{12\text{km}}{\text{hour}}}$

$\text{Time taken to cover 24 km}=\frac{24\text{ km}}{12}\times\frac{\text{hour}}{\text{km}}$

$\text{Time taken to cover 24 km}=\frac{24}{12}\times\text{hour}$

$\text{Time taken to cover 24 km}=2\text{ hour}$

Since we know that $\text{Average speed}=\frac{\text{Total distance}}{\text{Total time}}$ .

Upon substituting our values in above formula we will get,

$\text{Julia's average speed}=\frac{18\text{ km}+24\text{ km}+}{3\text{ hour}+2\text{ hour}}$

$\text{Julia's average speed}=\frac{42\text{ km}}{5\text{ hour}}$

$\text{Julia's average speed}=\frac{8.4\text{ km}}{\text{ hour}}$

Therefore, Julia's average speed is 8.4 km per hour.

5 0

3 years ago