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Natasha2012 [34]
3 years ago
9

Please Help!! Show all work pls! #15

Mathematics
2 answers:
vovikov84 [41]3 years ago
8 0
You first have to know the total number of responses: 82+76+42= 200
then you set up a proportion: %/100 = part/whole (and whichever thing you’re trying to solve for will be x)
so for this problem: x/100 = 42/200 (x is what you’re solving for: you’re trying to find the percent of people that prefer strawberry ice cream out of the 200 people surveyed)
then: cross multiply
i like to start with the x first so:
200 • x = 200x
and
42 • 100 = 4200
then finally put these together to make an algebraic equation: 200x = 4200
solve from there:
4200 divided by 200 (because you want x by itself) is 21 so you’re left with:
x = 21
now remember how we used x to represent the percent out of 100 on our proportion? this means that 21% of people (out of the 200) prefer strawberry ice cream
hope this helps!
MrRissso [65]3 years ago
7 0

Step-by-step explanation:

82 + 76 + 42 = 200

42 out of 200 hmmm

200 / 2 = 100

42 / 2 = 21

21 out of 100 = 42 out of 200

=

21%

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Step-by-step explanation:

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Which sequence has a common ratio of 2? a{20, 40, 80, 160, 320, 640, …} b{20, 10, 5, 2.5, 1.25, 0.625, …} c{20, 15, 10, 5, 0, -5
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<h3>What is Differentiation?</h3>

Differentiation means the rate of change of one quantity with respect to another. The speed is calculated as the rate of change of distance with respect to time.

Here, The operator for a round-trip fare of $20, carries an average of 500 people per day.

It is estimated that 20 fewer people will take the trip, for each $1 increase in fare.

for $x  increase in fare, 20x less people will take the trip and at that time the total fare F is given by  

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