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bagirrra123 [75]
4 years ago
12

At the movie theatre, child admission is $5.90

Mathematics
1 answer:
Alik [6]4 years ago
5 0
Let the number of children be c, and the number of adults be a.
c + a = 170 (total number of tickets)
Then the cost of each is: $5.90/child, $9.60/adult:
5.9c + 9.6a = 1269.40 (total sales)
Solving as 2 simultaneous equations, we first transform the first equation:
a = 170 - c
Substitute into the 2nd equation:
5.9c + 9.6(170 - c) = 1269.40
Solving gives c = 98, and a = 170 - 98 = 72. This means that 72 adult tickets were sold that day.
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A recipe includes 6 cups of flour and 3 cup of shortening. Write the ratio of the amount of flour to the amount of shortening as
Zarrin [17]

Answer:

2 cups of flour : 1 cup of shortening

Step-by-step explanation:

So lets gather our information.

We know it takes 6 cups of flour for the reciepe.

We also know it takes 3 cups of shortening.

To find the ratio, put the two number values in a fraction:

cups of flour/cups of shortening

=

6/3

This says for 6 cups of flour, there are 3 cups of shortening

We can simplyfy this to:

2/1

This says for 2 cups of flour, there is 1 cup of shortening.

<u>Answer:</u>

<u>2/1</u>

Hope this helps! ;)

5 0
3 years ago
Statisticians prefer large samples. Describe briefly the effect of increasing the size of a sample (or the number of subjects in
Flauer [41]

Answer:

Margin of Error decreases

Pvalue decreases

Power increases

Step-by-step explanation:

The margin of error decreases as sample size increases given the same level of confidence, hence, the interval gets narrower.

The margin of error = (Zcritical * σ/√n) ; where, n is the denominator, as the denomination increases, the obtained value will decrease, hence, the margin of error.

When we have a false H0, then we expect a statistical result which will reject H0, with all facts remaining unchanged , increase in sample size n, will lead to decrease in Pvalue, because a lower P value increases the significance of statistical test needed to reject H0.

The power of a fixed level test when the null hypothesis is true, higher power is required to reject the null , increasing n will increase the probability of rejecting H0, by increasing the power of a fixed level test.

8 0
3 years ago
Write the equation of a line that is parallel to y = 1/2 x + 5
kumpel [21]

Answer:

y = 1/2x + 5

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

When 2 lines are parallel, they have the same slope.

Step 1: Define variables

Random point (2, 6)

<em>m</em> = 1/2

y = 1/2x + b

Step 2: Find <em>b</em>

6 = 1/2(2) + b

6 = 1 + b

5 = b

Step 3: Rewrite parallel linear equation

y = 1/2x + 5

3 0
3 years ago
The sixth-grade class is competing in the school field day. There are 32 girls and 40 boys who want to
RideAnS [48]

Answer:

There can be 8 teams at most

4 girls on each team

5 boys on each team

hope this helps! :)

5 0
3 years ago
Read 2 more answers
Lisa plays a video game in which she loses points. She loses 3 points 2 times what is her score?
never [62]

Answer:

8

Step-by-step explanation:

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3 years ago
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