4x-30=180
180-30
4x=150
150/4
37.5
x=37.5
Answer:
rational
Step-by-step explanation:
it can be written as a ratio like 42260/1
brainliest?? please
Answer:
SAS
Step-by-step explanation:
1 3
----- = ----
5 x
In a proportion, u cross multiply. Take the denominator of the first fraction and multiply it by the numerator of the second fraction. Then take the numerator of the first fraction and multiply it by the denominator of the second fraction.
(5)(3) = (1)(x) ...now multiply
15 = x
and u will see from the answer 1/5 = 3/15 that these are equivalent fractions because that is all proportions are..they are just equivalent fractions.
Here is another one...
2/11 = x/22 .....cross multiply
(11)(x) = (22)(2)
11x = 44
x = 44/11
x = 4
2/11 = 4/22.....equivalent fractions