Imagine taking a soup can and peeling off the label. This label fully covers the curve side. What comes off is a flat piece of paper. If no tears are made, you'll have a rectangle after its fully peeled off.
The rectangle will have a width of W = 50 (same as the height of the can) and a length of L = 2*pi*r (same as the circumference of the base). So the area of this rectangle is A = W*L = 50*2*pi*r = 100*pi*r
The expression 100*pi*r represents the lateral surface area for this particular cylinder
We are given that the lateral surface area is 750 square inches, so this is the area of the label that peels off meaning A = 750
Equate the two values and solve for r
100*pi*r = 750
pi*r =750/100
pi*r = 7.5
r = 7.5/pi
r = 7.5/3.14
r = 2.3885
which rounds to 2.39
This is why the answer is choice B) 2.39 inches
Rent and electricity = 5x + 11
rent = 2x - 3
electricity = (5x + 11) - (2x - 3)
electricity = 5x + 11 - 2x + 3
electricity = 3x + 14
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Answer: 3x + 11
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Answer:
A is correct because:
Step-by-step explanation:
Why it is correct is all you have to do is minus $748.11 and 692.40 and you will get $55.71. That means he still owes $55.71 So he owes an additional $55.71.
Answer:
5/2-15/16r
Step-by-step explanation:
move each term in the parentheses by 5/16 which is 8x5/16-3rx5/16 then reduce the numbers with the greatest common factor 8 and get 5/2-3rx5/16r
and your solution is 5/2-15/16r
hope this helps!
