Answer:
$320
Step-by-step explanation:
400*0.8(decimal form of 80%) = 320
I don't know how your teacher chooses to solve this problem (or your text) but I do it this way.
Divide 81 by 3. You get 27.
Use 27 as your middle integer and go one odd integer up and down for the other 2.
25, 27, 29
the largest would be 29.
This works because 3 of the middle number equals 81, so the middle number plus a number 2 greater and a number 2 less would still be the same as adding 3 of the same number.
Check by adding the 3 numbers.
25 + 27 + 29 = 81
These are complementary angles, meaning they add up to 180
Let's write an equation
180=38 + 42 + (2x+10)
subtract 38 from both sides
142 = 42 + 2x + 10
subtract 42 from both sides
100 = 2x + 10
subtract 10 from both sides
90 = 2x
divide both sides by 2
45 = x
Plug that back into the angle
2x+10
2(45)+ 10
90 + 10
100
The angle is 100 degrees.
To check:
180 =?= 38 + 42 + (2x+10)
180 =?= 38 + 42 + (2(45) + 10)
180 =?= 80 + (90 + 10)
180 =?= 80 + 100
180 = 180
Hope this helps :)
Answer:
No, the ratios of the number of students on the team to the number of students trying out the same for both the boys and the girls are not same.
Step-by-step explanation:
Finding ratio of of the number of girls students on the team to the number of students trying
Total girls who tried = 28
No of girls selected in team = 12

Finding ratio of of the number of boys students on the team to the number of students trying
Total Boys who tried = 30
No of boys selected in team = 15

No, the ratios of the number of students on the team to the number of students trying out the same for both the boys and the girls are not same.
Keywords: Ratio
Learn more about Ratio at:
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