Nine times the input minus seven is equal to the output. If the input is -1, what is the output?
0-16
0-2
0-72
02.

Answer:

x = 1

y = 10

Step-by-step explanation:

5x + y = 15

Step 1: Move 5x on the other side by subtracting it from both sides

y = 15 - 5x

2x + y = 12

Step 2: Move 2x on the other side by subtracting it from both sides

y = 12 - 2x

Since y = y, that means 15 - 5x = 12 - 2x

Step 3: Add 5x to both sides

15 = 12 + 3x

Step 4: Subtract 12 from both sides

3 = 3x

Step 5: Divide both sides by 3

x = 1

y = 12 - 2x

Step 6: Plug in 1 for x

y = 12 - 2(1)

Step 7: Multiply 2 by 1

y = 12 - 2

Step 8: Subtract 2 from 12

y = 10

Answer:

the easy way is to take notes and study them before a test

Step-by-step explanation:

i took this lesson a few weeks ago

Answer:

b i think

Step-by-step explanation:

Answer: a

Step-by-step explanation:

The measure of ∠WYX in the given isosceles triangle is; 150°

We are told that Triangle WXY is isosceles..

We are given the base equal angles as;

YZ bisects ∠WYX and m∠XYZ = (15x)°. Thus;

∠WYX = 2(15x)° = (30x)°

Now, we are told that m∠YXZ = (2x + 5)°

Thus, since sum of angles in a triangle is 180°, then;

30x + (2x + 5)° + (2x + 5)° = 180

34x + 10 = 180

34x = 170

x = 170/34

x = 5

Thus;

∠WYX = (30x)° = (30 × 5) = 150°

Read more on angles in a triangle at; https://brainly.com/question/11966001

Answer:

150°

Step-by-step explanation:

Triangle WXY is isosceles. ∠YWX and ∠YXW are the base angles. YZ bisects ∠WYX. m∠XYZ = (15x)°. m∠YXZ = (2x + 5)°. What is the measure of ∠WYX?

5°

15°

75°

150°

Answer:

y=41^2

Step-by-step explanation:

Answer: y=1

Step-by-step explanation: You’ll need to isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

Step-by-step explanation:

Given

To find

Solution

Answer:

Step-by-step explanation:m

Answer: 3

Step-by-step explanation:

6x-7y=4

Plug in 2 for y

6x-7(2)=4

6x-14=4

Add 14 to both sides

6x=18

Divide both sides by 6 to get x alone

x=3

Answer:

The teacher can make 7 groups of 6 students

Step-by-step explanation:

24+18= 42. The biggest number you can use to divide and get a real number is 7.

Answer:

  The y-intercept is 0,-13 or y is -13

Step-by-step explanation:

I don't belive that you should use the method I use, but here it is.

times -2/5 by -15 and get 6 since its a negative slope it goes down 6 since it is also going forward on the axis leading to -7 minus 6 and getting -13.

Answer:

she is 13

Step-by-step explanation:

her brother is 7.

13+7=20

Answer

miranda is 13 and her brother is 7

Step-by-step explanation:

The volume of the material in the cracker is

(volume of the outer cylinder) minus (volume of the cylindrical hole)

The volume of any cylinder is

V =  (π) (radius)² (length)

For the outer cylinder:

V =  (π) (8 mm)² (18 mm)

For the cylindrical hole:

V = (π) (4 mm)² (18 mm)

The solid material in the whole cracker:

V =  (π) (8 mm)² (18 mm)  -  (π) (4 mm)² (18 mm)

V = (π) (18mm) {(8 mm)² - (4 mm)²}

V = (18π mm) (48 mm²)

V = (18π · 48) mm³

V = 2,714.3 mm³

Answer: I believe your answer is

-x(1^3+2x+3)

Step-by-step explanation:

Answer:

2.75

Step-by-step explanation:

The  decimal is halfway between 2.7 and 2.8 is 2.75

Suppose that the number is abcd.efg and belongs to the decimal numerical system.

Remember one thing that the place on the left of decimal point is called ones. Move one-one places to right, and divide by 10 and 10 more and more.

Move one-one places to left, and multiply (un-divide) by 10 and 10 more and more.

Thus, we write abcd.efg as:

[tex]a \times 10^3 + b \times 10^2 + c \times 10^1 + d \times 10^{0} + e \times 10^{-1} + f \times 10^{-2} + g \times 10^{-3}[/tex]

We will call d as ones digit, c as tens digit (it get multiplied by 10), b as hundreds digit etc.

We call e as digit at 10th place (division by 10), f as digit at hundredth place and so on.

Given;

Two decimal numbers;  2.7 and 2.8

Mid point=a+b/2

=2.7+2.8/2

=5.5/2

=2.75

Therefore, the mid value in decimal will be 2.75

Learn more about decimal here:

https://brainly.com/question/17983725

#SPJ2

Answer:

to me, i would say 2

Step-by-step explanation:

Answer:

y-2=3(x+6)

Step-by-step explanation:

you place the axis y and the x in the proper form; y - y1 = 3 ( x - x2)

since axis x is a negative, and in the slope form it is in need of a subtraction, you reverse it; a positive number.

Answer:930

Step-by-step explanation:

Answer:

930

Step-by-step explanation:

Answer:

A. 30 inches

B. 11 pieces

Step-by-step explanation:

Piece 1 = 120 inches

Piece 2 = 210 inches

1. He wants the smallest pieces to be as long as possible without having any leftover, how long should each piece be?

Find the highest common factor of 120 and 210

120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120.

210: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210.

The highest common factor of 120 and 210 = 30

Therefore, the smallest and longest pieces should be cut into 30 inches each

B. Total Smaller pieces of wood = piece 1 / 30 + piece 2 / 30

= 120/30 + 210/30

= 4 + 7

= 11 pieces

Answer:

y= x+3

Step-by-step explanation:

The equation of a line in slope form is given as :

y= mx + c ---------where m is the gradient and c is the y-intercept

Finding the slope ,

m = Δy/Δx

m= 5-3 / 2-0

m= 2/ 2

m= 1

Taking m=1, point {2,5} , an imaginary point {x,y}

1 = y-5 / x-2

1 {x-2} = y-5

x-2 = y-5

x= y-5+2

x= y-3

x+3 =y

y= x+3 -----the equation of the line in slope- intercept form

Answer:

Step-by-step explanation:

Simplifying

0.35x + -4.8 < 5.2 + -0.9x

Reorder the terms:

-4.8 + 0.35x < 5.2 + -0.9x

Solving

-4.8 + 0.35x < 5.2 + -0.9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '0.9x' to each side of the equation.

-4.8 + 0.35x + 0.9x < 5.2 + -0.9x + 0.9x

Combine like terms: 0.35x + 0.9x < 1.25x

-4.8 + 1.25x < 5.2 + -0.9x + 0.9x

Combine like terms: -0.9x + 0.9x < 0.0

-4.8 + 1.25x < 5.2 + 0.0

-4.8 + 1.25x < 5.2

Add '4.8' to each side of the equation.

-4.8 + 4.8 + 1.25x < 5.2 + 4.8

Combine like terms: -4.8 + 4.8 < 0.0

0.0 + 1.25x < 5.2 + 4.8

1.25x < 5.2 + 4.8

Combine like terms: 5.2 + 4.8 < 10

1.25x < 10

Divide each side by '1.25'.

x < 8

Simplifying

x < 8

lets work on the triangle with 60 and 70.

they make 130, and a triangle has 180 degrees, so that angle is 50

50+95+? is 180?

its 35

35+75 si 110, 180-110

so 70.

Answer

I think you just draw a line from 9 to 4, i'm not so sure tho.

Step-by-step explanation:

*Snarls at my own stupidity*

Answer:

C

Step-by-step explanation:

9x+7+10x+8+70=180

19x+85=180

19x=95

x=5

9(5)+7=52

180-110=70

Answer:

8.64

Step-by-step explanation:

Hope this helps <3

Answer: 220 miles

Step-by-step explanation: If she travels 55 miles per hour, for four hours, then you need to do 55 times 4. The answer is 220.