Set up 2 equations:
Total items sold: x + y = 300
This gets rewritten as x = 300-y
The second equation is for total amount made:
2.50x + 1.50y = 522
Replace x in the 2nd equation with the value of x from the first one:
2.50(300-y) + 1.50y = 522
Simplify:
750 - 2.50y + 1.50y = 522
Combine like terms:
750 - y = 522
Subtract 750 from both sides:
-y = -228
Divide both sides by -1 ( to make y positive)
y = 228
Now replace y in the first equation to solve for x:
x+ 228 = 300
Subtract 228 from both sides:
x = 72
He sold 72 bags of popcorn and 228 sodas.
Answer:
12 and 15 or
12 and 18 or
15 or 18
Step-by-step explanation:
The two numbers have to both be divisible by 3, since their greatest common factor is 3. This only leaves..
12, 15, or 18 (no other numbers between 10 and 20 are divisible by 3)
The factors of 12 are: 2, 3, 4, 6, and 12
The factors of 15 are: 3, 5, and 15
The factors of 18 are: 2, 3, 6, 9, and 18
All three numbers have 3 as a greatest common factor, so we have 3 pairs of numbers they could be...
12 and 15 or
12 and 18 or
15 or 18
Answer:
The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330
Step-by-step explanation:
<u><em>The correct question is</em></u>
Birds burgers barn sold <em>495 hamburgers</em> today. The number sold with cheese wise half the number sold without cheese. How many of each kind were sold?
Let
x -----> the number of hamburgers sold with cheese
y -----> the number of hamburgers sold without cheese
we know that
-----> equation A
----> equation B
substitute the equation B in equation A and solve for y
Find the value of x
therefore
The number of hamburgers sold with cheese was 165 and the number of hamburgers sold without cheese was 330
Answer:
2 i think
Step-by-step explanation:
Answer:
9x-3x(2-4)=6x(3x+4)-6(3x-2)
