£100 - £y would be left :D
Answer:
20
Step-by-step explanation:
- You can set this up in an algebraic equation:
- .09x=5 which translates to 9% times a variable or unknown number equals 5
- Divide both sides by .09 which turns to 55.5
- Multiply by .36 to find 36% of that number which equals 20
Answer:
49.5
Step-by-step explanation:
90% of 55 is 49.5
H = number of hamburgers sold.
c = number of cheeseburgers sold.
we know that "c" is three times the number of "h", thus c = 3h
we also know, the total amount sold for both is 556, h + c = 556
h + c = 556
c = 3h
thus
h + (3h) = 556 <---- solve for "h" to see how many hamburgers were sold.
what about "c"? well, c = 3h
