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postnew [5]
3 years ago
6

Use a proportion to determine the number of children age 5 in a kindergarten class if 80% of a class of 20 children are that age

.
A. x=100
B. x=75
C. x=40
D. x=15
E. x=16
Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0

Answer:

16 children

Step-by-step explanation:

80% of 20 children comes out to 16 children who are of age 5.

If desired, rewrite "80%" as "0.80" and use that 0.80 as the multiplier of 20:

0.80(20 children) = 16 children.

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Write tan in terms of sin and cos.

\displaystyle \lim_{t\to0}\frac{\tan(6t)}{\sin(2t)} = \lim_{t\to0}\frac{\sin(6t)}{\sin(2t)\cos(6t)}

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