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Dvinal [7]
3 years ago
12

How to compare ratios?

Mathematics
2 answers:
Cloud [144]3 years ago
8 0
By set it a a fraction colen or reffer it to the word to
iren2701 [21]3 years ago
3 0
You can compare ratios by using a colen, the word "to", and a fraction. Examples

3:4
3 to 4
3/4
You might be interested in
Mrs. Reid wrote the following problem on the whiteboard: Tom and Michele shared 1/4 pound of grapes equally. What fractional par
Citrus2011 [14]

Yes, I do.

You need to divide the number of people, by the number of grapes to get the total amount of grapes each person gets.

5 0
3 years ago
A model rocket is launched with an initial upward velocity of 202 ft/s. The rocket's height h (in feet) after t seconds is given
7nadin3 [17]
<h2>Hello!</h2>

The answer is:

The rocket will reach a height of 82 feet at:

t1=0.42s

and

t2=12.21s

<h2>Why?</h2>

We are asked to find the value(s) of t for which the rocket's height is 82 feet, so, we need to replace the height value (82 feet) into the given quadratic equation, and then, isolate "t" making the equation equal to 0.

So, writing the quadratic formula, we have:

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}

The given function is:

-16x^2+202x=h

Substituting h equal to 82 feet, we have:

-16x^2+202x=82

-16x^2+202x-82=0

Where,

a=-16\\b=202\\c=-82

Then, substituting it into the quadratic equation we have:

\frac{-b+-\sqrt{b^{2} -4ac} }{2a}=\frac{-202+-\sqrt{202x^{2} -4*-16*-82} }{2*-16}\\\\\frac{-202+-\sqrt{202x^{2} -4*-16*-82} }{2*-16}=\frac{-202+-\sqrt{40804-5248} }{-32}\\\\\frac{-202+-\sqrt{40804-5248} }{-32}=\frac{-202+-\sqrt{35556} }{-32}=\frac{-202+-(188.56) }{-32}\\\\t1=\frac{-202+(188.56) }{-32}=0.42\\\\t2=\frac{-202-(188.56) }{-32}=12.205=12.21

So, the rocket will reach a height of 82 feet at:

t1=0.42s

and

t2=12.21s

Have a nice day!

5 0
3 years ago
Please help with my math :)
defon

Answer:

33,3

Step-by-step explanation:

Set it up as a proportion in correspondence with their unit of measurement:

\frac{16}{21,3} = \frac{25}{?} → \frac{[21,3][25]}{16} → \frac{532,5}{16} = 33,28125 \\ \\ 33,3 ≈ P

I hope this is correct, and as always, I am joyous to assist anyone at any time.

8 0
3 years ago
Wich of following is(are) the solution(s) to |x+3| = 12<br> Answer: x=9
egoroff_w [7]

the answer to this is

x=9,-15

3 0
3 years ago
Read 2 more answers
70 p x 2 1/2 = how many pounds
Setler79 [48]
70 x 2 = 140, so 1 pound 40p. Adding 35p (half of 70p) equals 175p. This is £1.75p.
4 0
3 years ago
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