Answer:
The answer is shown in the picture. you basically have to do integration by parts 2 times to get final answer.
Let the number of quarter be x and that of nickels be y
total number of coins will be:
x+y=85
thus
x=85-y.........i
total amount of money will be:
0.25x+0.05y=14.25....ii
substituting i in ii we get:
0.25(85-y)+0.05y=14.25
21.25-0.25y+0.05y=14.25
7=0.2y
y=7/0.02
y=35
thus
x=85-35=50
the number of quarters was 50 and that of nickels was 35
Answer:
The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour.
Based on the area of the juicebox and the cost per square inch, the cost to create one package is $7.20.
<h3>What is the cost of one package?</h3>
First, find the area of the juice box. The formula is:
= 2lh + 2lw + 2hw
= (2 x 3 x 4) + (2 x 3 x 1.5) + (2 x 4 x 1.5)
= 45 inch²
The Cost is $0.02 per square inch and the number per package is 8 juice boxes. The total cost is:
= 45 x 0.02 x 8 boxes
= $7.20
Find out more on the area of a box at brainly.com/question/14345458.
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Use photo math for this :)