Solve the system of equations.
y= 8x-7. y=6x+5. 

X=?
Y=?

Answer:

The slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

Step-by-step explanation:

From the line equation, let us take two points

Finding the slope between two points

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:1\right)[/tex]

[tex]m=\frac{1-2}{4-0}[/tex]

[tex]m=-\frac{1}{4}[/tex]

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be:

[tex]-\frac{1}{-\frac{1}{4}}=4[/tex]

Thus, the slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

Answer:

Cost of each individual book = $10.5

Step-by-step explanation:

Given:

Cost of 3 book set = $24.81

Amount save = $6.69

Find:

Cost of each individual book

Computation:

Assume:

Cost of each individual book = a

Total cost = 3a

So,

Total cost = $24.81 + $6.69

Total cost = $31.5

So,

3a = $31.5

a = $10.5

Cost of each individual book = $10.5

Answer:

L (-2, -3)  K(-2,-4)  I (3,-1)  J (2,-4)

Step-by-step explanation:

I' = (3,-1)

J' = (2,-4)

K' = (-2,-4)

L' = (-2,-3)

Answer:

the slope is 1

Step-by-step explanation:

Answer:

The equation of the line is -5/4

Step-by-step explanation:

Answer:90

Step-by-step explanation:

Answer: $90

Step-by-step explanation:

You can set up a proportion.

$54 = 3 tickets

x = 5 tickets

To find x, multiply 54 and 5.

54 × 5 = 270

Then divide 270 by 3.

270 ÷ 3 = $90

Since we figured out x = $90, this means that it costs $90 for 5 tickets.

hope this helps!!

Answer:

the number on the left is half of the amount of the number next to it on the right, so the next three terms are 64, 128, 256

Step-by-step explanation:

ex 4x2=8 8x2=16 16x2=32

Answer: 7/21 is the answer because 7 * 2 = 14 and 21*2=42

Step-by-step explanation:

Answer:

7/21

Step-by-step explanation:

This Correct Answer

Answer:

can't draw it but it should look something like 6 glasses that are half of half full. in total they hold 1.2 liters

Step-by-step explanation:

Answer:

that would be at least 1.41

Step-by-step explanation:

beucase 6 cups = 1.41

Mark me Brainliest!

Answer:

I believe it's C. (0.4)

Step-by-step explanation:

Answer:

3:4, 30:24, 60:48

Step-by-step explanation:

Answer:

30:24

45:36

60:48

75:60

90:72

105:84

120:96

135:108

150:120

Step-by-step explanation:

hope it helps

Answer:

messages me i will explain how to solve if i can

Answer:

You need to post a picture for an evaluation of your performance.

Step-by-step explanation:

Answer:

30-3=n

Step-by-step explanation:

Hope this helps!

Answer:

x+3=30

Step-by-step explanation:

There are x number of students, then 3 students were added to the class. Now there are 30 students.

Answer:

-28k - 36

Step-by-step explanation:

8k - 9(4k+4)

distribute -9 into the ( )

8k - 36k -36

combine 8k and - 36k to get - 28k

-28k-36

hope this helps!!!

Answer:

Step-by-step explanation:

If J and K are complementary, then J + K = 90. If J is 18 less than K, then:

J = K - 18. Now we have a system. We'll sub in K - 18 for J to the first equation:

K - 18 + K = 90 and

2K - 18 = 90 and

2K = 108 so

K = 54

Now that we know K, we'll sub in to find J:

J + 54 = 90 so

J = 36

Answer: x=2y=12

Step-by-step explanation:

Answer:

Step-by-step explanation:

Convert the equation into mx+b format.

y=-1/2x + 6

Then, graph the line using the slope and y-intercept.

Answer:

We conclude that a function is defined as having only one corresponding y-value for each x-value.

Hence, option (C) is true.

Step-by-step explanation:

We know that A function is a certain relationship is defined as having only one corresponding y-value for each x-value.

Considering the function

Here,

Considering the table

x                      y

1                      2

2                     3

3                     4

4                     5

The values in the table satisfy the function y = x+1.

It is clear from the table that the function has only one corresponding y-value for each x-value. In other words, there is no repetition of 'x' value.

Therefore, we conclude that a function is defined as having only one corresponding y-value for each x-value.

Hence, option (C) is true.

Proportional and linear functions are almost identical in form. The only difference is the addition of the “b” constant to the linear function. Indeed, a proportional relationship is just a linear relationship where b = 0, or to put it another way, where the line passes through the origin (0,0).

You’re welcome

Step-by-step explanation:

Given that x is multiplied by 7 = 21 Then

7 * x = 21

or x = 21/ 7

Therefore x = 3.

Answer:

Solution,

here,

x+7=21

x=21-7

Therefore,x=14

Answer:

#1:  A

#2:  2

I apologize if its wrong

Answer: A, 5

Explanation:

Simply create an slope-intercept equation using the given information. The initial fee is $5, which is the y-intercept and $2.75 every stop, which is our slope. The equation is y = 2.75x+5. Since this is an inequality and she's looking for the most amount of stops she can take before maximizing her budget, it needs to be a less than or equal to sign. Change the equation to be 5+2.75S≤21. Subtract 5 from both sides to get 2.75S≤16. Divide 2.75 to both sides to get S≤5.82. This would be estimated to around 5 stops, which would be the largest amount of stops.

Answer:

88888

Step-by-step explanation:

6201005050

Answer:

first one is proportional, second is not. (not sure how to answer the number thing lol)

Step-by-step explanation:

Answer:

They will never cost the same.

Step-by-step explanation:

Answer:

2.5x +13.6 = 2x +14.6 (set them equal to each other and subtract 2x from both sides)

0.5x +13.6 = 14.6 (subtract 13.6 from both sides)

0.5x = 1 (divide both sides by 0.5)

x= 2

at two toppings they will cost the same

Step-by-step explanation:

Answer:

C, D

Step-by-step explanation: