Nora's math teacher said that each question answered correctly on a test would be
worth 5 points. Answer the questions below regarding the relationship between the
number of questions correct and the score on the test.

Answer:

Its false babe

Answer:

The ratios does not for a proportion.

Step-by-step explanation:

☆When

[tex] \frac{18}{54} [/tex]

is simplified, it simplifies to:

[tex] \frac{14}{9} \: not \: \frac{16}{9} [/tex]

☆And you could also figure it out doing proportion.

[tex] \frac{18}{54} ≠ \frac{16}{6} \\ \\ 864≠756[/tex]

Answer:

a) (X - 4)x 5 = 15

b) the answer is 7

Step-by-step explanation:

divide 15 by 5 and then add 4, do the equasion backwards :)

The solution of the given equation (X - 4)x 5 = 15 would be equal to 7.

An equation is an expression that shows the relationship between two or more numbers and variables.

Now we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in other equation to get linear equation in one variable.

We are given that a number subtract 4, then divide by 5. The result equals 15.

a) The equation form as

(X - 4)x 5 = 15

b) Now solving the equation as;

(X - 4)x 5 = 15

5x - 20 = 15

x = 35/7

x = 7

Hence, the answer is 7

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You can fold your paper on one, two, or more folds, but only on the folds we've already made. You can't make any new folds.

Answer:

A.

Step-by-step explanation:

4x-(-5x)=9x

-6y-2y=-8y

13-5=8

So, the answer is 9x+8y=8

(hope this helps!)

Answer:

x=12

Step-by-step explanation:

8x=96

8x/8=96/8

x=12

Hope this helps!

Answer:

Yes.

Pls mark brainliest. Thanks.

Answer: the answer is y=1/2x+3

Step-by-step explanation:

Hopes this helps !! Message me if explanation is needed !!!

The equation of the line which passes through (2,4) with a slope of 1/2​ is  [tex]y = \frac{x}{2} +3[/tex].

Y = mx + b is the slope-intercept form of the equation of a straight line. In the equation y = mx + b, m is the slope of the line and b is the intercept. X and y represent the distance of the line from x-axis and y-axis, respectively. The value of b is equal to y when x = 0, and m shows how steep the line is.

Given

Slope m = 1/2

Point (x, y) = (2, 4)

Equation of line which passes through a point (x, y) with a slope of m is

y = mx + b

Substitute the values

⇒ [tex]4=\frac{1}{2}(2)+b[/tex]

⇒ 4 = 1 + b

⇒ b = 4 - 1

⇒ b = 3

Substitute m = 1/2 and b = 3 in equation (1)

[tex]y = \frac{1}{2}(x) +3[/tex]

⇒ [tex]y = \frac{x}{2} +3[/tex]

Hence, the equation of the line which passes through (2,4) with a slope of 1/2​ is  [tex]y = \frac{x}{2} +3[/tex].

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Answer: 3

Step-by-step explanation: [ 3.6 ] represents the greatest integer function [ x ]

If x is an integer use that integer

If x is not an integer use the next smaller integer

[ 3.6 ] is not an integer, hence

[ 3.6 ] = 3

Answer:

30 miles.

Step-by-step explanation:

She drove 50/5 = 10 miles in January.

Therefore she drove 3*10 = 30 miles in February.

Answer:

4 i think

Step-by-step explanation:

The area of the circular opening is  201.14 sq.inches.

Area is the space occupied by any given surface in a two dimensional plane.

A circular duct has a diameter of 16 inches

Area of the circular opening is given by

πd²/4

d is the diameter of the circle

= (22/7) * (16)²/4

= 201.14 sq.inches

Therefore the area of the circular opening is  201.14 sq.inches.

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Answer:

{-3, 3, 5, 9}

Step-by-step explanation:

The domain is simply the inputs (x) used in the function.

Answer:

{-3,3,5,9} this is answer

Answer:

30m, 24m/s

Step-by-step explanation:

Given the expression for the position of the object expressed as:

S = 6t² + 3t + 7,

At t = 0

S0 = 6(0)²+3(0)+7

S0 = 0+0+7

S(0) = 7m

At t = 2

S2 = 6(2)² + 3(2)+ 7

S2 = 6(4)+6+7

S2 = 24+13

S2 = 37

The displacement = S2-S0 = 37-7= 30m

For the velocity

V = dS/dt = 12t+3

At t = 0

V0 = 12(0)+3

V0 = 3

At t= 2

V2 = 12(2)+3

V2 = 24+3

V2 =27

The velocity will be V2-V0 = 27-3 = 24m/s

Answer:

300 would be

Step-by-step explanation:

Answer:

No, around 300 would be reasonable.

Step-by-step explanation:

Answer:

Ohhh fancy Smart im not that smart LOL

Step-by-step explanation:

Have A Wonderful Day !!

Answer:

The area is 285.1 mi^2

Step-by-step explanation:

Here, we want to find the area of the larger sector

Mathematically, that would be;

theta/360 * pi * r^2

= 270/360 * 3.142 * 11^2

= 285.1 mi^2

Answer:

should be 6to make is one so you can multiply it by 1 to get the same number

Step-by-step explanation:

Answer:

D = 8

Step-by-step explanation:

distribute

2 = 2d - 14

add 14 to both side

16 = 2d

divide both sides by 2

8 = d

d = 8

can I get brainliest ?

Answer:

20k

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

9k + 3k + 8k

Step 2: Simplify

Final Answer: [tex]20k[/tex]

Steps/Reasons/Explanation:

Because they are all one variable, you can just add them up.

Question: Simplify the expression: [tex]9k+3k+8k[/tex].

Step 1: Addition.

[tex]20k[/tex]

~I hope I helped you :)~

Answer:

Were they both 45? I'm kinda confused on that part, but I think Ralph would be 48 and Bob would be 50

Step-by-step explanation:

Answer:

34 and 17

Step-by-step explanation:

Bob = B

Ralph = R

B=2R

B-3+R-3=45

B+R-6=45

+6         +6

B+R=51

Substitute B for 2R

2R+R=51

3R=51

R=17

2(17)=34

so B is 34 and R is 17

Answer: The answer will most likely be 1

Answer:

1. Angles: <F=<J, <H=<H, <G=<K

Sides: FG/JK, GH/KH, FH/JH

2. 1/4 3. 5/2 4. X=12 5. 122.5 units 6. x=8; y=35 7. X=3 8. x=25 9. x=12 10. x=15 11. X=14 12. x=13

Step-by-step explanation:

2. 4/8 =1/4

3. 10/4=5/2

4. 5x=60(x=12)

5. 7(35)/2: 245/2= 122.5 units

6. x/28= 6/21: 21x=168: x=8

7. 49/14= 9(x+1)/(x+5): 49(x+5)=9(x+1)+14: 49x+245=126x+14: 245-14=126x-49x: 231=77x: x=3

8. 52/91=x+3/2x1: 52(2x-1)= 91(x+3): 104x-52=91x+273: 13x=325: x=25

9. 5x-3/3x+2= 60/40: 60(3x+2)= 40(5x-3): 200x-120=180x+120: 200=180x+120: 20x=240: x=12

10. 168x-280=160x-60: 8x-120: x=15

11. 12/x+1= 32/3x-2: 12(3x-2)= 32(x+1): 36x-24=32x+32: 4x=56: x=14

12. x+4/2x-7= 51/57: 57(x+4)= 51(2x-7): 57x +228=102x-357: -45x = -585: x=13

Answer:

x² + 4x + 9

Step-by-step explanation:

This is just adding like terms (Adding x²'s to each other, adding x's to each other, etc.)

3x² - 2x² = x²

-x + 5x = 4x

7 + 2 = 9

So all together its x² + 4x + 9.

Answer:

√13

Step-by-step explanation:

Find the length AC and BC

AC=5-2

=3 (AC found in the y-axis so we substract the y values)

BC=4-2

=2 (BC found in the x-axis so we substract the x values)

then by using pythagoras we can find AB

AB^2=BC^2+AC^2

Answer:

19

Step-by-step explanation:

You need to find the biggest and smallest number; 25,6

Then you subtract 6 from 25

25-6=19

I hope this helps!!!!!!!

Answer:

19

Step-by-step explanation:

The range is the difference between the highest and the lowest number

So 6, 12, 18, 20, 25 and 25-6 = 19

Answer:

87

Step-by-step explanation:

1x0=97x1x0xratio=87

Answer: the graph is decreasing everywhere

Answer:

Acute triangle.

Step-by-step explanation:

Since all angles in the triangle is less than 90°, it is an acute triangle.

Question # 7

Given two points

Determining the slope of the line passing through the points (0, 0) and (3, 3)

(x₁, y₁) = (0, 0)

(x₂, y₂) = (3, 3)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [3 - 0] / [3 - 0]

                = 3 / 3  

                = 1

Thus, the slope of the line = m = 1

Question # 8

Given two points

Determining the slope of the line passing through the points (1, 3) and (5, 5)

(x₁, y₁) = (1, 3)

(x₂, y₂) = (5, 5)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [5 - 3] / [5 - 1]

                = 2/4  

                = 1/2

Thus, the slope of the line = m = 1/2

Question # 9

Given two points

Determining the slope of the line passing through the points (4, 4) and (5, 3)

(x₁, y₁) = (4, 4)

(x₂, y₂) = (5, 3)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [3 - 4] / [5 - 4]

                = -1 / 1  

                = -1

Thus, the slope of the line = m = -1

Answer:

[tex]9[/tex] right-handed gloves and [tex]3[/tex] left-handed gloves were sold.

Step-by-step explanation:

Given:  In one month, [tex]12[/tex] gloves were sold for a total revenue of [tex]\$561[/tex].

            right-handed gloves cost [tex]\$45[/tex] and left-handed gloves cost [tex]\$52[/tex].

To find: How much of each type of gloves did they sell?

Solution: Let they sell [tex]x[/tex]  right-handed gloves, and [tex]y[/tex] left-handed gloves.

Now, cost of each right-handed gloves [tex]=\$45[/tex]

cost of each left-handed gloves [tex]=\$52[/tex]

Total revenue [tex]=\$561[/tex]

So, we get

[tex]45x+52y=561\:\:\:...(i)[/tex]

Also,  in a month [tex]12[/tex] gloves were sold.

So, we get

[tex]x+y=12\:\:\:...(ii)[/tex]

Now, from [tex](ii)[/tex] we get, [tex]x=12-y[/tex].

Putting [tex]x=12-y[/tex] in equation [tex](i)[/tex], we get

[tex]45(12-y)+52y=561[/tex]

[tex]\implies 540-45y+52y=561[/tex]

[tex]\implies7y=561-540[/tex]

[tex]\implies7y=21[/tex]

[tex]\implies y=\frac{21}{7}[/tex]

[tex]\implies y=3[/tex]

Now, putting [tex]y=3[/tex] in equation [tex](ii)[/tex], we get

[tex]x+3=12[/tex]

[tex]\implies x=12-3[/tex]

[tex]\implies x=9[/tex]

Hence, [tex]9[/tex] right-handed gloves and [tex]3[/tex] left-handed gloves were sold.