Answer: price of soda (a) = $2 and price of popcorn (b) = $0.5
Step-by-step explanation:
Let's denote soda = a and popcorn = b
Kaylin bought a soda and two popcorn, writing out an equation for this would be
a + 2b = $3...........equation (i)
And her brother bought 3 sodas and 1 popcorn.
3a + b = $6.50..........equation (ii)
From equation (i),
a + 2b = 3
Making a the subject of formula,
a = 3 - 2b......equation (iii)
Using substitution reaction, put equation (iii) into equation (ii)
3(3 - 2b) + b = $6.50
9 - 6b + b = 6.50
9 - 5b = 6.50
Collecting like terms,
5b = 9 - 6.50
Divide both sides by 5,
b = 5.
Put b = 5 into equation (i)
a + 2(0.5) = 3
a + 1 = 3
a = 2
Therefore, the price of soda is $2 per one and $0.5 for each popcorn.
Answer:
Total trip cost = $2,158
Step-by-step explanation:
Given:
Cost of each ticket = $26
Number of student = 83
Find:
Total trip cost
Computation:
Total trip cost = Cost of each ticket x Number of student
Total trip cost = $26 x 83
Total trip cost = $2,158
The correct option is The Barbara equation did not consider the number of bottles of water.
Given,
The selling price of iced tea is $1.49 per bottle.
The selling price of water is $1.25 per bottle.
Equation written by the Barbara,
Here in this question Barbara multiply the selling price of bottle with the number of bottle using the coefficient x, But she did not use any coefficient for the bottle of water. The correct equation is,
where<em> y </em>is the number of water bottle sold to earn the profit of $100.
Hence the correct option is the Barbara equation did not consider the number of bottles of water.
For more about the linear equation, follow the link below-
brainly.com/question/11897796
20 + x = 10
20 + -10 = 10
x = -10
hope this helps you
