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vredina [299]
2 years ago
15

Please Help! Ratio question!

Mathematics
2 answers:
Ivanshal [37]2 years ago
6 0
Divide 2000 and then add what you get from that and that’ll be your answer
klio [65]2 years ago
4 0

Answer:

10

Step-by-step explanation:

divide 1800 by 20 and 1800 by 18 and find the difference

You might be interested in
10. When a rubber ball is dropped from a height, h cm on to a flat concrete floor, it rebounds to 3 5 h cm a height of Given a r
Xelga [282]

Step-by-step explanation:

Let the height above which the ball is released be H

This problem can be tackled using geometric progression.

The nth term of a Geometric progression is given by the above, where n is the term index, a is the first term and the sum for such a progression up to the Nth term is

To find the total distance travel one has to sum over up to n=3. But there is little subtle point here. For the first bounce ( n=1 ), the ball has only travel H and not 2H. For subsequent bounces ( n=2,3,4,5...... ), the distance travel is 2×(3/4)n×H

a=2H..........r=3/4

However we have to subtract H because up to the first bounce, the ball only travel H instead of 2H

Therefore the total distance travel up to the Nth bounce is

For N=3 one obtains

D=3.625H

7 0
2 years ago
PLEASE HELP!<br> 4x + 2y = 6<br> -2x + 2y = 18<br> There combined answer please!<br> SHOW YA WORK
Minchanka [31]
Your answer, in your set notation, is
{-2, 7}

5 0
2 years ago
Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5)<br> Please show all steps thank you
Greeley [361]

Answer:

(f\circ g)(-5)=85

Step-by-step explanation:

We are given:

\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x

And we want to find:

(f\circ g)(-5)

This is equivalent to:

\displaystyle =f(g(-5))

So, we will evaluate g(-5) first, which yields:

\displaystyle g(-5)=(-5)^2+(-5)=25-5=20

So:

=f(g(-5))=f(20)

Then:

\displaystyle f(20)=4(20)+5=80+5=85

Therefore:

(f\circ g)(-5)=85

6 0
3 years ago
PLEASEEEE HELPP MEEE WITHHH NUMBERSSS 9 AND 10<br><br> PLEASEEE HELPPP MEEEEE!!!!!!!!
Lyrx [107]

Answer:

9: 89°

Step-by-step explanation:

Inside of a triangle is 180, so 180-39-52=89

I'm sorry I can't answer 10 for you

8 0
2 years ago
What is 25% 136 so I know
tigry1 [53]
It's 34.

You can either intuitively know 25% means one-fourth and divide 136 by 4

Or

Convert the percentage to a decimal and multiply. 136 * 0.25 = 34
8 0
2 years ago
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