All categories

3 years ago

A football team carried out a report to see the impact of stretching on preventing injury. Of the

Mathematics

1 answer:

Nesterboy [21]3 years ago

8 0

Answer:

$\frac{5}{7}=0.7143$

Step-by-step explanation:

First, we need to know the number of player that don't stretch and the number of player that don't stretch and get injured.

So, the number of player that don't stretch are calculated as:

28 - 21 = 7

Because there are 28 footballers and 21 stretch regularly.

Additionally, the number of player that don't stretch and get injured are equal to:

8 - 3 = 5

Because there are 8 injured players and 3 of them stretch.

Finally, the fraction of players who don't stretch that get injured are:

$\frac{5}{7}=0.7143$

Because there are 7 players that don't stretch and 5 of them get injured last year.

You might be interested in

17% of what number is 3.4

saw5 [17]

Answer:

Step-by-step explanation:

We already have our first value 3.4 and the second value 17. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

Step 1 ---> 3.4 = 17% × Y

Step 2 ---> 3.4 = 17/100 × Y

Multiplying both sides by 100 and dividing both sides of the equation by 17 we will arrive at:

Step 3 ---> Y = 3.4 × 100/17

Step 4 ---> Y = 3.4 × 100 ÷ 17

Step 5 ---> Y = 20

Finally, we have found the value of Y which is 20 and that is our answer.

<h3><u>*You can easily calculate 3.4 is 17 percent of what number by using any regular calculator, simply enter 3.4 × 100 ÷ 17 and you will get your answer which is 20*</u></h3>

4 0

2 years ago

The length of a rectangle is 1 units more than the width. The area of the rectangle is 56 units. What is the width, in units, of

pishuonlain [190]

Answer:

Step-by-step explanation:

$56=8*7\\8-7=1$ The width is smaller, so it is 7.

8 0

3 years ago

I need help quick please

notsponge [240]

Answer:

1/2 i think i sm not sure

Step-by-step explanation:

i am answering because i realy need brainliest have a wonderful day goodluck

8 0

3 years ago

Rick and Ranger sell Toyotas for Tom's Auto. Over the past year they sold 360 cars. Assuming Rick sells 5 times as many as Range

pentagon [3]

Ranger sold 72 Toyotas.

5 0

3 years ago

Read 2 more answers

Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (neg

Eva8 [605]

Given:

The given expression is:

$(-4x+9)^2$

According to Kylie,

$(-4x+9)^2=(-4x)^2+(9)^2$

$(-4x+9)^2=16x^2+81$

To find:

The correct statement for Kylie's explanation.

Solution:

We have,

$(-4x+9)^2$

According to the perfect square trinomial $(a+b)^2=a^2+2ab+b^2$ .

$(-4x+9)^2=(-4x)^2+2(-4x)(9)+(9)^2$

$(-4x+9)^2=16x^2-72x+81$

Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Therefore, the correct option is C.

4 0

3 years ago

Read 2 more answers