Answer: Mackenzie bought 7 bags of popcorn and 10 candies.
Step-by-step explanation:
Let x represent the number of bags of popcorn that Mackenzie bought.
Let y represent the number of candies that Mackenzie bought.
She bought a total of 17 bags of popcorn and candies altogether. This means that
x + y = 17
She bought $99.50 worth of bags of popcorn and candies. Each bag of popcorn costs $8.50 and each candy costs $4. This means that
8.5x + 4y = 99.5- - - - - - - - - - - - - - 1
Substituting x = 17 - y into equation 1, it becomes
8.5(17 - y) + 4y = 99.5
144.5 - 8.5y + 4y = 99.5
- 8.5y + 4y = 99.5 - 144.5
- 4.5y = - 45
y = - 45/ - 4.5
y = 10
x = 17 - y = 17 - 10
x = 7
The answer would be d. 2,742
The reason for this being is because 2,742 rounded to the nearest hundred would be 2,700, but if you were to take the 2,612 rounded to the nearest hundred it would be 2,600. Also 2,742 rounded to the nearest thousand is 3,000.
Answer:
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Step-by-step explanation:
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Answer:

Step-by-step explanation:
'y' equals the total amount of money that the customer will pay.
"20x" represents the $20 per hour.
The '+45' represents the flat fee.
<em>Brainilest Appreciated. </em>
Since 16 cups = a gallon, u multiply 20 times 16, the answer is 320, there are 320 cups within 20 gallons.