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2 years ago

Plz help idk how to do this and now everything is getting on my nerves

Mathematics

1 answer:

S_A_V [24]2 years ago

3 0

Answer:

y = 2x + 120

Step-by-step explanation:

Step 1: Set up 2 equations to find out the money earned per ticket.

One week they sold 40 tickets and made $200. This includes some flat rate of pay, so our equation is

40x + y = 200 (40 tickets times the money made off of each plus their flat

rate is $200)

The next week they sold 70 tickets and made $260. This also includes the flat rate of pay, so our second equation is

70x + y = 260

Use elimination to solve this system of equation...

70x + y = 260

40x + y = 200

subtract the second equation from the first to get rid

of the y variable, then solve for x

30x = 60

x = 2 (divide both sides by 30)

So they make $2 per ticket sold.

Step 2: Find out the flat rate they are paid. Plug 2 into x in either equation and solve.

40(2) + y = 200

80 + y = 200

y = 120

So they are paid $120 flat rate.

The equation we get is the money per ticket, plus the flat rate, so

y = 2x + 120 (2x represents 2 dollars for every ticket sold)

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8. The 2003 Zagat Restaurant Survey provides food, decor, and service ratings for some of the top restaurants across the United

Shkiper50 [21]

Answer:

0.2637

Step-by-step explanation:

Population size is top 15 ranking restaurants.

Number of draws = 3

Number of observed successes = 5

Probability formula : [r . x } { n -r] [n - x]

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4 0

2 years ago

Write the slope-intercept form of the equation of the line through the given points.

Yuri [45]

<h3>Answer: y = 3x+4</h3>

Slope = 3

y intercept = 4

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

Explanation:

Let's find the slope.

$m = \text{slope}\\\\m=\frac{\text{rise}}{\text{run}}\\\\m = \frac{\text{change in y}}{\text{change in x}}\\\\m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{7-4}{1-0}\\\\m = \frac{3}{1}\\\\m = 3$

The slope is m = 3.

The y intercept is b = 4 due to the point (0,4). The y intercept <u>always</u> occurs when x = 0.

We'll then plug those m and b values into y = mx+b to get the answer y = 3x+4

-----------

As a way to check the answer, plugging x = 0 should lead to y = 4

y = 3x+4

y = 3*0+4

y = 0+4

y = 4

So that works out. Let's try x = 1. It should produce y = 7

y = 3x+4

y = 3*1+4

y = 3+4

y = 7

That works out also. The answer is fully confirmed.

4 0

2 years ago

Eli attended a concert. The decibel level of the music averaged 110 decibels but varied by 28 decibels from the average. Enter a

musickatia [10]

Answer:

The decibel range is $82\leq d\leq 138$

Step-by-step explanation:

Let

d -----> the decibel level of the music

we know that

The absolute value of the difference of the decibel level of the music and its average, must be less than or equal to 28 decibels

The absolute value that represent this problem is

$\left|d-110\right|\le28$

Solve the absolute value

<em>First solution (positive)</em>

$+(d-110)\le28$

Adds 110 both sides

$d\le28+110$

$d\le138$

<em>Second solution (negative)</em>

$-(d-110)\le28$

Multiply by -1 both sides

$(d-110)\ge-28$

Adds 110 both sides

$d\ge-28+110$

$d\ge82$

therefore

The decibel range is

$82\leq d\leq 138$

8 0

3 years ago

Angela works at a job that pays $9.46 per hour. She works for 30 hours per week.

lozanna [386]

Answer:

$13,622.4

Step-by-step explanation:

$1,135.2(what she gets paid per month) *12 (months per year)

4 0

2 years ago

What is the equation of a line with a slope of

bulgar [2K]

Answer: D. 1/2x - 3

Hope this helps :)

6 0

3 years ago