All categories

3 years ago

Darwin's best time for running 5000 metres is 16 minutes. He wants to run it in 15 minutes and 30 seconds.

Mathematics

2 answers:

Rudik [331]3 years ago

6 0

Answer:

3 percent

Step-by-step explanation:

convert to seconds

960 seconds to 930 seconds

30 seconds ÷ 960=3 per cent

marshall27 [118]3 years ago

4 0

Answer:

-3.125%

Step-by-step explanation:

Percentage change = new-original/original x 100

15.5-16= -0.5

-0.5/ 16 x100 = -3.125%

You might be interested in

Find the size of each of 66 payments made at the end of each year into a 88% rate sinking fund which produces $36000 at the en

Assoli18 [71]

Answer: $7787.99

Step-by-step explanation:

We know that the formula to find the periodic payment on an annuity is given by :-

$P=\dfrac{r(PV)}{1-(1+r)^{-n}}$ , where PV is the present value , r is the rate of interest ( in decimal ) and n is the number of payments.

Given : Present value : $36000

Rate of interest = 8%=0.08

Time period = 6 years

Then , the periodic payment will be :-

$P=\dfrac{(0.08)(36000)}{1-(1+0.08)^{-6}}\\\\\Rightarrow\ P=\dfrac{2880}{0.3698}\\\\\Rightarrow\ P=\$7787.99$

Hence, the payment size is $7787.99.

8 0

3 years ago

A cylinder has a height of 6 millimeters and a radius of 4 millimeters. What is its volume? Use ≈ 3.14 and round your answer t

netineya [11]

Answer:

$V=301.44\ \text{mm}^2$

Step-by-step explanation:

Given that,

Height of the cylinder, h = 6 mm

Radius of the cylinder, r = 4 mm

We need to find the volume of the cylinder. The formula for the radius of the cylinder is given by :

$V=\pi r^2 h$

Putting given values,

$V=3.14\times (4)^2 \times 6\\\\V=301.44\ \text{mm}^2$

So, the volume of the cylinder is $301.44\ \text{mm}^2$ .

4 0

3 years ago

What is the square root of 225?

NeTakaya

The square root of 225 is 15. I hope that helped!

5 0

3 years ago

Solve and get brainliest!!<br>please be sure of your answer!!!!

I am Lyosha [343]

Answer:

Step-by-step explanation:

Graph it

7 0

2 years ago

Read 2 more answers

Help. Jim runs 10 miles in 85 minutes. At the same rate, how many minutes would he take to run 8 miles?

const2013 [10]

Answer:

68 minutes, 1 mile every 8.5 minutes

Step-by-step explanation:

4 0

2 years ago