All categories

2 years ago

500

Mathematics

1 answer:

statuscvo [17]2 years ago

3 0

Answer: The required ratio would be 3 miles : 4 minutes.

Step-by-step explanation:

Since we have given that

Speed of a cheetah = 45 miles per hour

So, it means

Distance = 45 miles

Time = 1 hour = 60 minutes

So, the ratio of the distance it travels to the time it takes would be

Distance : Time

$45\ miles:60\ minutes\\\\=3\ miles :4\ minutes$

Hence, the required ratio would be 3 miles : 4 minutes.

You might be interested in

A population of penguins is given by Pt=P0⋅3t5 where t is the time in years, t≥0. How long does it take for the population to tr

PolarNik [594]

Answer:

5 years

Step-by-step explanation:

If the population of penguins is given by the function:

$P(t)=P_0\cdot 3^{t/5}$

Initial Size = $P_0$

Triple its Initial Size, P(t)= $3P_0$

Therefore:

$3P_0=P_0\cdot 3^{t/5}\\$Divide both sides by P_0\\3=3^{t/5}\\$Since they have the same base\\1=t/5\\Cross multiply\\t=5$

It therefore takes 5 years for the penguin population to triple in size.

5 0

2 years ago

If the interest of sum of money is 6 yrs in 3/8 of the principal . what is the rate of interest?

REY [17]

Answer :

R = 6.25%

Solution,

Let P is the principal. It means interest will be :

I=3/8 P

The formula for the interest is given by :

$I=\dfrac{PRT}{100}\\\\\dfrac{3}{8}P=\dfrac{PR\times 6}{100}\\\\\dfrac{3}{8}=\dfrac{6R}{100}\\\\R=\dfrac{300}{8\times 6}\\\\=6.25\%$

Hence, the rate of interest is 6.25%.

6 0

2 years ago

I will give brainlyist to the first right answer

scZoUnD [109]

To find equivalent expressions, distribute the 7 into (-3/4x - 3)

7(-3/4x) = -21/4x, which simplified is -5 1/4x
7(-3) = -21

Put together, this is -5 1/4x - 21 (answer 1)

Another way to write an equivalent expression would be to not simplify 7 times the distributed term. You could write 7(-3/4) + 7(-3) which makes #5 correct as well. #5 is 7(-3/4x) - 7(3). If this was simplified, it would equal answer choice 1.

#2 is not correct because 7 times -3/4x does not equal -7 3/4x

#3 is not correct because -21/4 simplifies to -5 1/4, not -6 1/4

#4 is not correct because 7(-3) does not equal -4

3 0

3 years ago

Evaluate 6 + 30 divided (4-5) =

ki77a [65]

Answer:

6 + 30 / (4-5) = - 24

Step-by-step explanation:

4-5 goes 1st then you do 6 + 30 .

36 / -1 = -24

3 0

2 years ago

Read 2 more answers

Factor the polynomial completely 20x -220x squared + 600x

denis23 [38]

I first would rearrange the problem

-220x^2 + 20x + 600x

Simplify

-220x^2 + 620x

Find the GCF of the two values

20x(11x + 13)

Hope this helps!

7 0

2 years ago