The answer is 9x - 90y = 20.
Explanation:
y = 1/10 x - 2/9
First eliminate the fractions by multiplying through by the LCM which is 90:-
90y = 9x - 20
Standard form is ax + by = c, so rearranging we get:
0 = 9x - 90y - 20
9x - 90y = 20 .
I believe that is cubed. sense cubic unit is 3 and that has 3 numbers after the decimal point.
Ratio of red roses to yellow roses as given in the question = 4:6
Total number of roses in the question = 50
Let us assume that the common ratio is = x
Then
4x + 5x = 50
10x = 50
x = 50/10
= 5
Then
The number of yellow roses = 6 * 5
= 30
So there are 30 yellow roses among the total of 50 roses. I hope the procedure is simple enough for you to understand. You can use this procedure for solving similar type of problems in future. I hope this has helped you.
2x + 4y = 12..subtract 2x from both sides
4y = -2x + 12...divide both sides by 4
y = -2/4x + 12/4....reduce
y = -1/2x + 3 <===
Answer:
50
Step-by-step explanation:
50$ because 20$ is 40%, so times that by 2 which you get 20$ and 80%. Then you divide 20 by 2 then you get 10 which is 20% so you add 10 and you get 50$ which is 100%
