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SAT Math 2.2 Statistics and Probability 242 Views
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Description:
SAT Math 2.2 Statistics and Probability. What percent of her recommended daily intake of 2000 calories did she consume?
Transcript
- 00:02
Here’s your shmoop du jour, brought to you by Chocolate Chunk Cookies.
- 00:06
A great way to cleanse the palate after downing a box of Mint Milanos.
- 00:10
Emily ate a Chocolate Chunk cookie and drank a Grande <<GRAHN-day>> Caramel
- 00:14
Macchiato <<MOCK-ee-ah-toe>>, which has 240 calories and 7 grams of fat.
- 00:18
What percent of her recommended daily intake of 2000 calories did she consume?
Full Transcript
- 00:23
And here are the potential answers…
- 00:27
It wants us to find the percent of Emily’s 2000 calorie intake that she ate...
- 00:32
which means we only care about the number of calories she consumed,
- 00:36
not the amount of fat in her Macchiato. So we can just throw that out.
- 00:40
Now, to calculate a percent, we just divide our amount by the total, and multiply by 100.
- 00:45
In this case, the total is 2000 calories, and our amount is the number of calories in
- 00:49
a chocolate chunk and grande caramel macchiato.
- 00:52
We’re given that the macchiato has 240 calories,
- 00:55
and the chocolate chunk, according to the table, has 360 calories.
- 01:00
Add them. So 240 plus 360 gives us 600 calories.
- 01:05
Then just take 600 divided by 2000, we get .3.
- 01:09
Then multiply it by 100, we see that, these two food items, when consumed together...
- 01:14
...tell us that Emily has had 30% of her daily calorie intake.
- 01:19
The answer's D.
- 01:20
Which will be roughly the shape of Emily’s belly if she keeps up her current dietary habits…
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