Answer:
y = 2x+10
Step-by-step explanation:
y is the cost (which we don't know)
2x is the $2 per card with x representing the number of cards (which we don't know)
And of course 10 is the cover charge.
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 and Explanation
<h2>0</h2>
<em>This is because they are both the same opposite number, and you are adding.</em>
But, if it was, 
then it would be 
or 
.
<em>So, the answer is 0.</em>
<em>Hope this helps =)</em>
Answer:
x - 7
Step-by-step explanation:
just add/substract like terms only
I don't know the anwser sorry and what grade are u in
