2+number won over 9+number played=1/2
number won=number played (number played means how many more past 9)
so
if n=number won=number played then
times both sides by (2)(9+n)
2(2+n)=9+n
distribute
4+2n=9+n
minus n from both sides
4+n=9
minus 4 from both sides
n=5
answer is 5
test
2+5=7
9+5=14
7/14=1/2
true
n=5
Answer:
- Jon - Andrea = 1/10
- Callie - Jon = 3/10
Step-by-step explanation:
In terms of tenths, the distances each hiked are ...
- Andrea — 4/10
- Jon — 5/10
- Callie — 8/10
Then the differences of interest are ...
Jon - Andrea = 5/10 -4/10 = 1/10
Callie - Jon = 8/10 - 5/10 = 3/10
__
Jon hiked 1/10 of the trail more than Andrea.
Callie hiked 3/10 of the trail more than Jon.
Answer:
The answer is the fourth option, a+2b
Step-by-step explanation:
The number of ways that Grant can arrange 3 of the 10 plants is<u> 120 ways</u> and the number of ways that 4 floats out of 8 can be arranged is 70 ways.
<h3 /><h3>How can these combination problems be solved?</h3>
Grant can arrange 3 out of 10 plants in the following number of ways:
= 10!/ ((10! - 3!)3!)
= ( 10 x 9 x 8) / (3 x 2)
= 120 ways
The parade organizer can arrange 4 floats out of 8 as:
= 8!/((8! - 4!)4!)
= (8 x 7 x 6 x 5) / (4 x 3 x 2)
= 70 ways
When 4! is written in expanded form, it comes out as:
= (4 x 3 x 2)
Find out more on combinations at brainly.com/question/4658834.
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Step-by-step explanation:
-x+5+6x-7x-14
6x-8x+5-14
-2x-9