You have to divide to find a common number. 143/13=11
1:11
Answer:
2 >x
Step-by-step explanation:
5 - 4x > 3x - 9
Add 4x to each side
5 - 4x+4x > 3x+4x - 9
5 > 7x-9
Add 9 to each side
5+9> 7x-9+9
14>7x
Divide each side by 7
14/7 >7x/7
2 >x
Answer:
waterfall 5 percent
ravine 30
creek 15percent
cabin 20
hill 5 percent
bluff 10
ravin 25 percent
probability is 98 percent
Answer:
D
Step-by-step explanation:
Factor the numerators/ denominators
10 - 5 = 5(2a - 1) ← common factor of 5
4a² - 1 = (2a - 1)(2a + 1) ← difference of squares
[ Change ÷ to × and turn second fraction upside down ]
=
× 
[ cancel the factor (2a - 1) on the numerator/denominator ] leaving
=
= 