The total number of adult tickets sold is 250.
<h3>What is the total number of adults tickets sold?
</h3>
- Let the initial number of adult's ticket sold be represented with x
- Let the initial number of children's ticket sold be represented with y
x / y = 2/5
Cross multiply :5x = 2y
y = 5/2
y = 2.5x
(x + 70) / (y + 300) = 1/3
Cross multiply :210 + 3x = 300 + y
Substitute for y
210 + 3x = 300 + 2.5x
300 - 210 = 3x - 2.5x
90 = 0.5x
x = 90 / 0.5
x = 180
Total tickets sold = 180 + 70 = 250
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Answer:
13
Step-by-step explanation:
because you basically divide by 2
Move the 1st equation to get y by itself so it’s now y=-4x so you can substitute that in for the second equation 2y+x=-7 becomes 2(-4x)+x=-7
-8x+x=-7
-7x=-7
x=1
then plug that back in to find y
4(1)+y=0
4+y=0
y=-4
now you have x and y so your coordinate (the answer) is (1, -4) hope this helps!
Answer:
An equation that typically has a real-life application is called a(n) formula.