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2 years ago

A train travels 228km in 4 hours and 45 minutes. What is its average speed in kilometers per hour?

Mathematics

1 answer:

nevsk [136]2 years ago

4 0

Answer:

48 km/h

Step-by-step explanation:

The average speed is calculated by distance divided by time. So 228 / 4.45 gets the answer.

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Hello everyone !! I have a couple math questions need answered asap !!!

Sedbober [7]

Answer:

Compare the y-intercepts and slopes of the linear functions f(x) and g(x) and choose the answer that best describes them.

x f(x)

0 1

2 9

4 17

g(x) = 3x + 1

A) The slope of f(x) is less than the slope of g(x). The y-intercept of f(x) is equal to the y-intercept of g(x).

B) The slope of f(x) is less than the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).

C) The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is equal to the y-intercept of g(x).

D) The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).

Step-by-step explanation:

5 0

2 years ago

The area of a cross section perpendicular to the base of a rectangular prism is 45 square inches. If the length and width of the

Naily [24]

The height of the prism is $2.25 \ in$

Explanation:

It is given that the area of the cross section of the rectangular prism is 45 square inches.

Length of the rectangular prism is $5 \ in$

Width of the rectangular prism is $5 \ in$

To determine the height of the prism, let us substitute these values in the formula $SA=(2l+2w)h$ , we get,

$45=(2(5)+2(5))h$

Multiplying the terms within the bracket, we get,

$45=(10+10)h$

Adding the terms within the bracket, we have,

$45=20h$

Dividing both sides by 20, we get,

$2.25=h$

Thus, the height of the rectangular prism is $2.25 \ in$

4 0

2 years ago

Write 7x10x10x10x10 with an exponent

polet [3.4K]

Answer:

7x10^4

Step-by-step explanation:

Please add the thanks and rate me please

6 0

3 years ago

Read 2 more answers

Radical expressions Help pls multiple choice

Ann [662]

Answer:

4th option (sqrt(10))/2

Step-by-step explanation:

$\frac{5}{\sqrt{10} } * \frac{\sqrt{10}}{\sqrt{10} } \\ \frac{5\sqrt{10}}{10} \\\\frac{\sqrt{10}}{2}$

8 0

2 years ago

The linear equation y = −5x − 18 is written in which form?

Savatey [412]

It’s written in slope intercept form .

8 0

2 years ago