Please help!! (100 points)

Mathematics

2 answers:

yulyashka [42]3 years ago

7 0

Answer:

40 scoops

Step-by-step explanation:

Volume of the sink is 660pi in³

Volume of the cone/scoop is:

⅓ × pi × 2.5² × 8 = 50pi/3 in³

No. of scoops required:

660pi ÷ 50pi/3

660 ÷ 50/3 = 39.6

natulia [17]3 years ago

3 0

Answer:

13 scoops

Step-by-step explanation:

PART 1) 2.5*2.5*8/3*3.14

52.36

PART 2) 660/52.36

13 scoops

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a total of $9500 is invested, part at 10% simple interest and part at 9%. if the total annual return from the two investments is

Nutka1998 [239]

a total of $9500 is invested, part at 10% simple interest and part at 9%

if the total annual return from the two investments is $914.00

Amount invested = 9500

Total amount return means total yield = $914

Let x amount is invested at 10% simple interest

Interest for first part = 10 % times x = 0.10x

Remaining part invested is 9500 -x

Interest for remaining amount = 9% (9500 -x) = 0.09(9500-x)

Total interest yield is 914. Now we frame an equation

0.10x + 0.09(9500-x) = 914

0.10x +855 - 0.09x = 914 (combine like terms)

0.01 x + 855 = 914 (subtract 855)

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So x = 5900

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alexira [117]

Answer:

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