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Vesnalui [34]
3 years ago
12

Help me please hurry!!

Mathematics
1 answer:
liubo4ka [24]3 years ago
4 0

Answer:

answer is 36 centimeter

Step-by-step explanation:

volume of a cylinder=πr^2h

1696=3.14*r^2*15

1696=47.1=r^2

1696-47.1=r^2

1648.9=r^2

\sqrt{1648.9} =r

40.60 =r

here according to the question and option given 40.60 is closest to 36 centimeters.so answer is option d.

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iragen [17]

Answer:

The mother (Rhoda) is 46 years old.

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Step-by-step explanation:

Let the age of the mother (Rhoda) be m

Let the age of the daughter (Tenica) be d.

The sum of Rhonda and her daughter Tenica’s age is 64. This can be written as:

m + d = 64 ... (1)

The difference in their ages is 28. This can be written as:

m – d = 28 ... (2)

From the above illustrations, the equation obtained are:

m + d = 64 ... (1)

m – d = 28 ... (2)

Solving by elimination method:

Add equation 1 and 2 together

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¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

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Substitute the value of m into any of the equation to obtain the value of d. Here, we shall use equation 1

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Collect like terms

d = 64 – 46

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The answer is 7/5. I attached the work below.

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