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4 years ago

how do you write these equations in slope-intercept form y+1=2x-3 ,2x-3=y+1 , 2y+2=4x-6. Are they the same or different?

Mathematics

1 answer:

inna [77]4 years ago

8 0

y+1=2x-3

y=2x-4

2x-3=y+1

2x-4=y

y=2x-4

2y+2=4x-6

2y=4x-8

y=2x-4

They are all the same: y=2x-4

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A total of 626 tickets were sold for the school play. They were either adult tickets or student tickets. There were 74 fewer stu

Sholpan [36]

Answer:

351 adults and 275 students

Step-by-step explanation:

We can set-up a system of equations to find the number of adults. We know students and adults attended. We will let s be the number of students and a be the number of adults. Since 626 tickets were purchased, then s+a=626.

We also know that 74 fewer student tickets then adult tickets. So s+76=a, the number of student tickets plus 76 will be the number of adult tickets.

We will solve by substituting one equation into the other. We substitute a=76+s into s+a=626. Simplify and isolate the variable a.

s+a=626

s+76+s=626

2s+76=626

2s+76-76=626-76

2s=550

s=275

This means that 275 students attended and 351 adults attended since 275+351=626.

6 0

4 years ago

2 What is the vertex of the following parabola?

Sliva [168]

Answer:

B.(-12,9) thats the answer enjoy :>

4 0

3 years ago

On weekends, Ben mops the kitchen floor. Below is an image that shows

Fynjy0 [20]

I’m pretty sure it’s 24

7 0

3 years ago

Help me please :) I’m not sure what else to say lol

vodomira [7]

X = 1/4, 5, -8

Hope this helps!

3 0

2 years ago

Read 2 more answers

Charles has collected data to find that the total snowfall per year in Reamstown has a normal distribution. Using the Empirical

Mazyrski [523]

Answer:

0.8413 or 84.13%

Step-by-step explanation:

Given : The mean is 72 inches and the standard deviation is 15 inches

To Find : What is the probability that in a randomly selected year, the snowfall was less than 87 inches

Solution:

Mean = $\mu = 72$

Standard deviation = $\sigma = 15$

Formula : $z=\frac{x-\mu}{\sigma}$

We are supposed to find the probability that in a randomly selected year, the snowfall was less than 87 inches

So, x = 87

Substitute the values in the formula

$z=\frac{87-72}{15}$

$z=1$

Now to find P(z<87) refer the z table

P(Z<87)=0.8413 = 84.13%

So, the probability that in a randomly selected year, the snowfall was less than 87 inches if the mean is 72 inches and the standard deviation is 15 inches is 0.8413 or 84.13%

6 0

4 years ago