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Vladimir [108]
1 year ago
9

John read that niacin can help your digestive system and skin. He eats a lot of peanut butter and discovered that each serving p

rovides 20% of his recommended daily allowance of niacin. If the recommended daily amount is 16 milligrams, how many milligrams of niacin is in one serving of peanut butter? 1.6 milligrams 3.2 milligrams 20 milligrams 32 milligrams Tags O printed ​
Mathematics
1 answer:
Delvig [45]1 year ago
8 0

One serving provides 3.2 milligrams of niacin to John.

Given: One serving provides 20% of the recommended daily allowance of niacin.

Recommended daily allowance is 16 milligrams

What is the percentage?

The percentage is the way of depicting a value concerning the one-hundredth part of any quantity. The symbol of percentage is %.

For example, 20% means 20 in the parts of 100. 20% means 20 / 100 or 0.20.

Now let’s solve the given problem.

Recommended daily allowance of niacin = 16 milligrams

One serving provides 20% of the daily allowance.

So, the number of milligrams provided by one serving is 20% of the recommended daily allowance of niacin.

= 20% of 16 milligrams

= 20 / 100 * 16 milligrams

= 0.20 * 16 milligrams

= 3.2 milligrams.

Therefore, the milligrams of niacin provided is 3.2 milligrams.

Hence, one serving provides 3.2 milligrams of niacin to John.

Know more about "percentage" here: brainly.com/question/13450942

#SPJ9

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Answer:

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Step-by-step explanation:

Turn percentage into decimals.

35%=.35

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When two lines cross like this, sum of measures of opposite angles is 180.
this means that:
measure angle AEC + measure angle BED = 180
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PLZ HELP! A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. If a tr
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Answer:

3.8

Step-by-step explanation:

A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains.

If a trip of 300 miles took 3 hour and 48 minutes, how much of it was through the mountains?

Let d = distance traveled at 37.5 (thru the mountains)

then

(300-d) = distance traveled at 90 mph

Write a time equation, time = dist/speed

change 3 hr 48 min to hrs: 3 + 48/60 = 3.8 hrs

plain time + mountain time = 3.8 hrs

%28300-d%29%2F90 + d%2F37.5 = 3.8

Multiply 90*37.5

3375*%28300-d%29%2F90 + 3375*d%2F37.5 = 3.8(3375)

cancel the denominator

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11250 - 37.5d + 90d = 12825

52.5d = 1575

d = 1575/52.5

d = 30 mi thru the mountains

Check this, find the distance on the plain

300-30 = 270 mi

Find the actual time at each speed

270/90 = 3 hrs

30/37.5 = .8 hrs

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

total time: 3.8 hrs

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3 years ago
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