All categories

4 years ago

The histogram shows the finishing times of runners in a race.

Mathematics

2 answers:

Leni [432]4 years ago

5 0

Answer:28 runners

Step-by-step explanation:

iragen [17]4 years ago

3 0

Around 61% of the runners finished in less than 30 minutes.

We first find the total number of runners represented in the graph by adding the heights of all of the bars:

2+6+9+8+3 = 28 runners

Now we add the heights of the bars representing less than 30 minutes:
2+6+9 = 17

To find the percentage we divide the number of runners finishing in less than 30 minutes by the total number of runners:

17/28 = 0.607 ≈ 0.61 = 61%

You might be interested in

Find x such that 3^x = 27 mod 32 (b)

gregori [183]

Answer:

The value of x is 11.

Step-by-step explanation:

Consider the provided information.

It is given that $3^x = 27 mod\ 32$

We know that:

$3^4=81$

Now if we divide the number 81 with 32 it will gives us remainder 17.

This can be written as:

$3^4\equiv 17(mod\ 32)$

Now use the property: $a^n\equiv b^n(mod\ m)$

$(3^4)^2\equiv 17^2(mod\ 32)$

17²=289, if we divide 289 with 32 it will gives us remainder 1, thus.

$3^8\equiv 1(mod\ 32)$

Multiply both the sides by 3³.

$3^8\times 3^3\equiv 3^3(mod\ 32)$

$3^{11}\equiv 27(mod\ 32)$

Hence, the value of x is 11.

7 0

4 years ago

A department store sells t-shirts for $16.00. Every month that a t-shirt doesn’t sell, the store reduces the selling price by 25

algol13

Answer:

Step-by-step explanation:

A = 25% of 16 = $=\frac{25}{100}*8=\frac{1}{4}*8=2$

Selling price after reduction = 16 - 2 = $14

B= 25% of 14

$=\frac{25}{100}*14=\frac{1}{4}*14=\frac{7}{2}$

= 3.5

Selling price = 14 - 3.5 = $10.5

C = 25% of 10.5

$=\frac{25}{100}*10.5=\frac{10.5}{4}$

= 2.625 = $ 2.63

Selling price = 10.5 - 2.63 = $ 7.87

5 0

3 years ago

Read 2 more answers

HELP PLEASE!

arsen [322]

Answer:a two-step equation is an algebraic equation you can solve in two steps. ... It's always a good idea to check our solution in the original equation to make sure you didn't make any mistakes:

Step-by-step explanation:

7 0

3 years ago

The area of a circle is 50.24 square yards. What is the circle's radius?

Marina CMI [18]

Answer:

Radius=4yd

Step-by-step explanation:

4 0

3 years ago

Math help please! Will give 20 points!

sweet-ann [11.9K]

At goal post x= 35
<span>the height will be y= –0.03x2 + 1.6x= 19.25 > 15 </span>
<span>is 4.25 feet above the goal post.</span>

8 0

3 years ago