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Lemur [1.5K]
3 years ago
14

What are 3 equivalent ratios to 3/4?

Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0

Answer:

6/8, 9/12, 12/16

Step-by-step explanation:

Multiply the numerator and denominator by the same amount to maintain the same ration.

\frac{3}{4} =\frac{6}{8} = \frac{9}{12} =\frac{12}{16}

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kendrey ran 9 miles in 1 hour and 30 minutes. how long will it take her to run 12 miles at this pace?
castortr0y [4]
Turn hours into minutes

1hr = 60mins

Add the 60mins with 30mins since it’s 1hr and 30 mins. Which will equal 90mins


9miles/ 90minutes

You can simplify
1 mile/ 10 mins
So for 1 mile it takes 10 mins

And the problem is asking how much will it take for her to run 12 miles

Meaning it will take 120 minutes for her to run 12 miles.
6 0
3 years ago
Which is the best rational approximation for the square root of 55 ?
ASHA 777 [7]

Answer:

The best rational approximation for the square root of 55 is 7.5.

Let me know if this helps!

7 0
3 years ago
Use integration by parts to find the integrals in Exercise.<br> ∫^3_0 3-x/3e^x dx.
Viefleur [7K]

Answer:

8.733046.

Step-by-step explanation:

We have been given a definite integral \int _0^3\:3-\frac{x}{3e^x}dx. We are asked to find the value of the given integral using integration by parts.

Using sum rule of integrals, we will get:

\int _0^3\:3dx-\int _0^3\frac{x}{3e^x}dx

We will use Integration by parts formula to solve our given problem.

\int\ vdv=uv-\int\ vdu

Let u=x and v'=\frac{1}{e^x}.

Now, we need to find du and v using these values as shown below:

\frac{du}{dx}=\frac{d}{dx}(x)

\frac{du}{dx}=1

du=1dx

du=dx

v'=\frac{1}{e^x}

v=-\frac{1}{e^x}

Substituting our given values in integration by parts formula, we will get:

\frac{1}{3}\int _0^3\frac{x}{e^x}dx=\frac{1}{3}(x*(-\frac{1}{e^x})-\int _0^3(-\frac{1}{e^x})dx)

\frac{1}{3}\int _0^3\frac{x}{e^x}dx=\frac{1}{3}(-\frac{x}{e^x}- (\frac{1}{e^x}))

\int _0^3\:3dx-\int _0^3\frac{x}{3e^x}dx=3x-\frac{1}{3}(-\frac{x}{e^x}- (\frac{1}{e^x}))

Compute the boundaries:

3(3)-\frac{1}{3}(-\frac{3}{e^3}- (\frac{1}{e^3}))=9+\frac{4}{3e^3}=9.06638

3(0)-\frac{1}{3}(-\frac{0}{e^0}- (\frac{1}{e^0}))=0-(-\frac{1}{3})=\frac{1}{3}

9.06638-\frac{1}{3}=8.733046

Therefore, the value of the given integral would be 8.733046.

6 0
3 years ago
If the ratio of dogs to cats at an animal shelter is 2:5, then the number of cats is _____ times the number of dogs.
saul85 [17]
So 2:5 means that 5/7 animals are cats and 2/7 are dogs. I believe if you divide u will get your answer. 5/7 * 7/2 = 1.25x the number of dogs
6 0
3 years ago
What is 10x5thousands
ella [17]
It will be 50,000 =10*5,000
8 0
3 years ago
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