B. 324 square inches
C. 392 square inches
D. 480 square inches
Answer:
B) x+y=120; 12x+20y=1720
Step-by-step explanation:
If variables are defined as ...
x = number of student tickets sold
y = number of adult tickets sold
then the problem statement can be modeled by ...
x + y = 120 . . . . . . the total number of tickets sold is 120
12x + 20y = 1720 . . . . . the total collected from ticket sales was $1720
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Total revenue is the sum of the revenues from sales of each ticket type. The revenue from a given ticket type is the product of that ticket price and the number sold.
1.625 rounded to the nearesttenth is 1.6.
We have,
When rounding a number to the nearesttenth, you look at the digit in the hundredth place. If it is 5 or greater, you round up.
If it is less than 5, you round down. In this case, the digit in the hundredthplace is 2, which is less than 5.
To round 1.625 to the nearesttenth, we look at the digit in the hundredthplace, which is 2.
Since 2 is less than 5, we round down and keep the digit in the tenthplace as it is.
Therefore,
1.625 rounded to the nearesttenth is 1.6.
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