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3 years ago

Run 4 1/2 kilometers in 1/3 of an hour how many kilometers can she run in 1 hour

Mathematics

1 answer:

nordsb [41]3 years ago

8 0

Answer:

She can run 13 1/2 kilometers in an hour

Step-by-step explanation:

4 1/2 * 3 = 13 1/2

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The table shows the color preferences of 50 shoppers at the mall. What is the probability that one shopper, selected random from

Sladkaya [172]

20/50=2/5=0.4=40%
2/5 or 0.40 or 40%
They're all equal.
Hope this helps :)

5 0

4 years ago

Simplify the expression. What classification describes the resulting polynomial? (3x^2-11x-4)-(2x^2-x-6)

Gnoma [55]

The expression can be simplified to a polynomial of degree 2.

$x^2 - 10x + 2$

<h3>How to simplify the expression?</h3>

Here we have the expression:

$(3x^2 -11x - 4) - (2x^2 - x - 6)$

We can directly simplify this by taking the variable as common factor:

$(3 - 2)*x^2 + (-11 + 1)*x + (-4 + 6)\\\\x^2 - 10x + 2$

This is a polynomial, as you can see, the maximum exponent is 2, so the degree of the polynomial is 2.

If you want to learn more about polynomials:

brainly.com/question/4142886

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8 0

2 years ago

How would you find the area or perimeter of this shape?

Fittoniya [83]

The perimeter of a given shape implies the sum of all its sides. While the area of a given shape is the total value of space it would cover on a 2-dimensional plane.

The perimeter of the shape is 104 cm.

The area of the shape is 640 $cm^{2}$ .

The perimeter of a given shape implies the sum of all its length of sides., such that the value of each individual side is summed to a total value.

The area of a given shape is the total value of space it would cover on a 2-dimensional plane. The area of shapes depends on the type of shape.

In the given question, the given shape has 12 sides. Some of these sides can sum up to a given length as shown in the diagram.

So that;

perimeter = 2 + 32 + 10 + 10 + 2 + 32 + 8 + 8

= 104 cm

Thus, the perimeter of the shape is 104 cm

ii. The area of the shape = length x width

= 32 x 20

= 640 $cm^{2}$

Therefore, the area of the given shape is 640 $cm^{2}$ .

for more clarifications on the perimeter and area of a plane shape, visit: brainly.com/question/22909518

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4 0

2 years ago

Seth’s father is thinking of buying his son a six-month movie pass for $40. With the pass, matinees cost $1.00. If matinees are

Ymorist [56]

Answer:

In order for it to benefit his father to buy the pass Seth have to attend the movies for 11 times.

Step-by-step explanation:

Given:

Cost of movie pass = $40

Cost per matinees with pass = $1.00

Cost per matinees without pass = $3.50

To Find:

Number of times must Seth attend in order for it to benefit his father to buy the pass = ?

Solution:

Let x be the number of times he wants to visit

To profit his father

The number of visits without pass = the number of visits with passin the cost of $3.50

Then, without pass if he visits for x times then the cost will be = 3.50x

Also with pass, the number of times he can visit the pass = $\frac{40}{3.50}$

then

$\frac{350 x}{3.50} = \frac{40}{3.50}$

$3.50x = 40$

$x = \frac{40}{3.50}$

x = 11.42

x = 11 (approx)

3 0

4 years ago

Your mother has a new cell phone.It comes with 18 applications already installed.

8090 [49]

I need more information

4 0

3 years ago