Answer: 140 ml
Explanation:
let x be the original amount of water
x - 15% = 119
But x = 100% because it’s the original
=> 100% - 15% = 119ml
85% = 119ml
Find the amount of water in 15%:
85% = 119
15% = y
=> 85/15 = 119/y
Cross multiply:
85y = 15 x 119
85y = 1785
y = 1785/85
y = 21
But y = 15% therefore, 15% = 21ml
Back to our equation:
x - 15% = 119ml
x - 21ml = 119ml
x = (119 + 21)ml
x = 140ml
Therefore, the original amount of water is 140ml
Answer:
:?
Step-by-step explanation:
:?
Subtract 2x. (It would look like 4y=-2x+10
Answer:
Step-by-step explanation: ok so they sold 9 book marks for every 2 books right?
so you would put 72 over nine like a fraction, then you would put 2 over X like another fraction.
Then cross multiply. 72*x=72x
9*2=18
72 divided by 18 = 40
I hope this helps
Answer:
4n + 10
Step-by-step explanation:
