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3 years ago

CAN SOMEBODY HELP ME PLEASE

Mathematics

2 answers:

Mashutka [201]3 years ago

5 0

Answer:

The answer to your questions are:

15.- 45 mg

16.- 25 kg

17.- 185 pounds

18.- 6 mg

Step-by-step explanation:

D = (a M) / (a + 12)

15.-

a = 4 years

M = 180

D = (4 x 180) / (4 + 12) = 720 / 16

D = 45 mg

16.- 1 pound --------------- 0.4535 kg

55 pounds ------------ x

x = 55 x 0.4535 / 1

x = 24.94 ≈25 kg

17.- 1 pound --------------- 0.4535 kg

x --------------- 84.09 kg

x = 84.09x 1 /0.4535

x = 185.42 pounds

18.- M = 18 mg what is 1/3 of the adult dose?

M = 18/3 = 6 mg

Romashka [77]3 years ago

5 0

Hey!

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Question #15:

a = 4

m = 180

Substitute.

D = a/a + 12 * M

D = 4/4 + 12 * 180

Solve.

D = 4/16 * 180

Simplify.

D = 1/4 * 180

Multiply.

D = 45

Answer:

------------------------------------------------

Question #16:

Conversion.

1 pound = 0.454 kg

Multiply.

0.454 x 55 = 24.97

Round.

24.97 = 25

Answer:

25 kilograms.

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Question #17:

Conversion.

1 kilogram ≈ 2.2 pound.

Multiply.

2.2 x 84.09 = 184.998

Round.

184.998 = 185

Answer:

185 pounds.

------------------------------------------------

Question #18:

Divide.

180 / 3 = 60

Answer:

60 milligrams.

------------------------------------------------

Hope This Helped! Good Luck!

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