Answer:
A. 0 = (-x) + x
Step-by-step explanation:
Adding opposites results in zero.
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<em>Comment on the other answer choice</em>
Of course, x + x = 2x. This will only be zero if x is zero.
Use the fact that integrals are additive on their intervals. Mathematically, if , then
So we have
Answer:
96 bags of popcorn and 48 pretzels
Step-by-step explanation:
Let
x ----> the number of bags of popcorn sold
y ----> the number of pretzels sold
we know that
2.50x+2y=336 ----> equation A
x=2y ---> equation B
Solve the system by substitution
Substitute equation B in equation A and solve for y
2.50(2y)+2y=336
5y+2y=336
7y=336
y=48 pretzels
Find the value of x
x=2(48)=96 bags of popcorn
So basically you have to see how the person is built but in average it will took like 12minutes