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3 years ago

Plzzz help

Mathematics

1 answer:

Zolol [24]3 years ago

6 0

Answer: Each ticket costs $32

=========================================================

Explanation:

Let x be the cost of one ticket. If four people buy a ticket each, then they collectively spend a total of 4x dollars for those tickets. Add on 4*3 = 12 dollars from the fact that they bought the ice cream, and we arrive at the expression 4x+12. This is the total amount spent in dollars for the tickets and ice cream combined.

Set this expression equal to 140 and solve for x

4x+12 = 140

4x = 140-12

4x = 128

x = 128/4

x = 32

This says that each ticket costs $32

If one ticket costs $32, then four of them cost a total of 4*32 = 128 dollars. Add on the $12 spent on the ice cream to get 128+12 = 140, which helps verify we have the correct ticket price.

Another way to verify is to replace x with 32 in the original equation we set up, then simplify like so

4x+12 = 140

4*32+12 = 140

128+12 = 140

140 = 140

This is very similar to the previous verification technique used earlier.

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Find the surface area of a square pyramid with base edges of 8 feet. The height of each lateral face is 10 feet. Explain or show

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Answer:

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Step-by-step explanation:

area of a triangle= base x height / 2

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Using a compass, construct an accurate copy of triangle DEF. Check that EF = 4.6 cm.

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Step-by-step explanation:

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2 years ago

What are the slope and why intercept shown on the graph below

viktelen [127]

Hello!

Let's start by finding the slope of the line. You can calculate the slope by dividing the change in y-values by the change in x-values using the following formula:

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

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3 years ago

Read 2 more answers

Pls someone help these answers are on chegg so if u have a subscription pls answer these ill make u brainliest ! Below is a tabl

aivan3 [116]

The table is not clear, so i have attached it.

Answer:

z statistic is -2.26

This is less than our alpha level,therefore we reject the null hypothesis and conclude that there is a significant difference in the proportion of homeowners between first generation and second generation Hispanic Americans

Step-by-step explanation:

From the attached table, we can see that;

first-generation hispanic americans; (N = 899 and percentage = 43%

second-generation hispanic americans; N = 351 and percentage = 50%

first-generation asian americans; (N = 2,684 and percentage = 58%

second-generation asian americans; N = 566 and percentage = 51%

Z-score formula in this case is;

z = (p1^ - p2^)/(√(p^(1 - p^)((1/n1) + (1/n2))

Where;

p^ = (p1 + p2)/(n1 + n2)

For, hispanic americans we have;

p1^ = 0.43 × 899 = 386.57

p2^ = 0.5 × 351 = 175.5

p^ = (386.57 + 175.5)/(899 + 351)

p^ = 0.45

Thus;

z = (0.43 - 0.5)/(√(0.45(1 - 0.45)((1/899) + (1/351))

z = -2.26

From z-distribution table, we have;

P-value = 0.01191

Since we have 2 samples, then probability = 2 × 0.01191 = 0.02382

This is less than our alpha level of 0.05,therefore we reject the null hypothesis and conclude that there is a significant difference in the proportion of homeowners between first generation and second generation Hispanic Americans.

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3 years ago

How to factor out the coefficient of the variable of fractions???

serg [7]

Answer:

i believe that it is 9(x-4)

Step-by-step explanation:

9x-36

36 divided by 9 = 4

9(x-4)

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