4a + 7b = 38 -> (1)
9a + 7b = 68 -> (2)
Subtract (1) from (2),
9a - 4a + 7b - 7b = 68 - 38
5a = 30
a = 6
Answer:
1/8
Step-by-step explanation:
Hi there!
To divided fractions, you must flip the second fraction and multiply instead.
For example,
1/4 divided by 2 is the same thing as 1/4 x 1/2.
You then multiple straight across to get 1/8.
Really hope this helps!
Answer:
70%
Step-by-step explanation:
Percentage is out of 100
35/50 change denominator
multiply both numerator and denominator by 2
70/100= 70%
Answer:
what the question
Step-by-step explanation:
