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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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klasskru [66]

Answer:

y=(5/4)x-5/4

Step-by-step explanation:

First we need to find the slope:

\frac{y_{2}-y_{1} }{x_{2}-x_{1} }

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point-slope forum is

y=(5/4)x-5/4

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Write the equation of the line that is parallel to the line and through the given point y=-2x+1 point (0,5)
marysya [2.9K]

Answer:

y = -2x+5

Step-by-step explanation:

y = -2x+1 is in the form y= mx+b where m is the slope and b is the y intercept

-2 is the slope

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y = -2x+b

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3 years ago
What is the explicit formula for this sequence?
SVEN [57.7K]

Answer:

The correct answer is b.)

Step-by-step explanation:

Given:

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We conclude that this sequence is arithmetic series.

First we must find difference d:

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The formula for n-th term of the arithmetic series is:

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Answer:

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Answer:

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Step-by-step explanation:

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