x is the number of adults and y is the number of children.
x + y = 12
<span>14x + 10y = 140
lets multiply the first equation by -10 and then add it to the second equation:
-10x - 10y = -120
</span>14x + 10y = <span>140
</span>-----------------------
4x + 0 = 20
x = 20/4
x = 5
then substitute in the original equation:
x + y = <span>12
</span>5 + y = <span>12
</span>y = 12 - 5
y = 7
therefore there were 5 adults and 7 children
Answer:
The answer is B=10 and the top is called hypothenus
Answer:
Side AB
Explanation:
The opposite side is the side that is not touching the reference angle.
Answer:
x=$7
Step-by-step explanation:
The total cost of bill is $32, $11 is from a plate of corn tacos. And there are 3 purchased burrito bowls at a cost of $x each.
$32 (total bill)
-$11 (tacos)
=$21
$21 / 3 (burrito bowls)
=$7
x<em> </em>or the cost of each burrito bowl is $7
