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
Answer:
a.
Step-by-step explanation:
4x+y=20 multiplied by (-4) gives you -16x-4y=-80
To find a markup price, you multiply by the percentage marked up, and then add that to the original cost to get your new cost.
Example: a pair of jeans that cost $64 is marked up 35%.
multiply 64 and 0.35 = 22.4
add 22.4 to 64 =86.4
the markup price of the jeans is $86.40
hope this makes sense!
Answer:
240 
Step-by-step explanation:
11 + 1 = 12
19 + 1 = 20
12 x 20 = 240
Answer: Least common multiple of 4 and 8 is 8
