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4 years ago

The area of an 20 -cm-wide rectangle is 440 cm. What is its length?

Mathematics

1 answer:

Nataly [62]4 years ago

8 0

Answer:

22cm

Step-by-step explanation:

440÷20

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pantera1 [17]

Answer:

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Step-by-step explanation:

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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.

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4 years ago

What is the volume of this rectangular prism? 5 4 cm 4 3 CT | C 3 5 cm cm

padilas [110]

(5/4)•(4/3)•(3/5)

So you multiply all of them basically

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2 years ago

18.374 to the nearest hundredth

vodka [1.7K]

HEY THERE KORI! :)

the answer is: 18.37

I hope it helps

I'm sorry if my answer didn't meet your expectations

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3 years ago

Answer? Plz I don’t know what it is

Dmitriy789 [7]

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3 years ago

The area of an ​20 -cm-wide rectangle is 440 cm. What is its​ length?

The area of an 20 -cm-wide rectangle is 440 cm. What is its length?