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Andrei [34K]
2 years ago
12

Lara surveyed all of the 11th grade students at her school about the number of languages they speak and whether or not they have

allergies. Here are her results:

Mathematics
1 answer:
Bingel [31]2 years ago
6 0

Answer:

57.6% have allergies

42.4% have no allergies

Step-by-step explanation:

We only need to consider the students who speak two languages according to the question.

To find the percent with allergies, divide the number of students with allergies by the total number of students (that speak two languages).

19/33 = 0.5757 = 57.6%

To find the percent without allergies, divide the number of students without allergies by the total number of students (that speak two languages).

14/33 = 0.4242 = 42.4%

Check your work by adding the percentages to make sure they equal 100%

57.6 + 42.4 = 100

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Mrs. Garcia’s students were asked to find 220% of 75. Each of the students had a different method.
ludmilkaskok [199]

Answer:

Colton.

Step-by-step explanation:

Amy: 220% is basically \frac{220}{100} which in decimal form, is 2.20.

Braden: 100% + 100% + 20% = 220%, so it is accurate.

Colton: 100%  + 10% + 10% = 120%, not 220%.

Dainielle: 100% of 75 is 75. Dividing the 100% of 75 by 5 makes a 20%. Adding 100% of 75 twice makes 200%. 200% + 20% = 220%, so it is accurate.

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2 years ago
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tankabanditka [31]

Step-by-step explanation:

2x²+2xy+yx+y²+2x²+2xy-yx+y²

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2 years ago
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Pls help asappp you will get brainliest
andreyandreev [35.5K]

Answer:

32 units.

Step-by-step explanation:

look up a picture of a 306090 triangle, it will make sense :)

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Please help me!!!You will get 20 points...
pashok25 [27]

Use the rule of 3, note that we will convert the hours to minutes:

60 - 84
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(75 * 84) / 60 = x
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3 years ago
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Answer:

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Step-by-step explanation:

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In your graphing calculator, type

nPr(9,3)

(9 letters in trapezoid, 3 letter combos)

and it returns 504.

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3 years ago
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