EASY— get marked brainliest!!!

Answer:

30

Step-by-step explanation:

A player answers x correct questions and y incorrect questions for a total of 40 questions.

x + y = 40

The score is obtained by subtracting y incorrect answers from two times the x of correct answers.  The player's score is 50.

2x - y = 50

Use substitution to solve.  Rearrange the first equation so that it is equal to y.  Then, substitute the y-value into the second equation.

x + y = 40

y = 40 - x

2x - y = 50

2x - (40 - x) = 50

2x - 40 + x = 50

3x - 40 = 50

3x = 90

x = 30

Since x was made to represent correct answers, the player had 30 correct answers.

Answer:

You can put 1 + 6 into parentheses to make the answer correct.

Step-by-step explanation:

5 × 4 - (1 + 6) = 13

5 × 4 - (7) = 13

20 - (7) = 13

13 = 13

Answer:

5 • 4 - (1+6)=13

Step-by-step explanation:

5 • 4 - 1+6=13

Add parentheses to make this true

5 • 4 - (1+6)=13

Using PEMDAS

Parentheses first

5 • 4 - 7=13

Then multiply

20-7 =13

Then subtract

13=13

Answer:

4000

Step-by-step explanation:

5000 * .8 is 4000

Answer:

4000 students

Step-by-step explanation:

Number of computer science majors = 80% of 5000

                                                              = 0.8 * 5000

                                                              = 4000

Answer:

Solving for 2x - 3 = -x + 3

Standard form:

3x − 6 = 0

Factorization:

3(x − 2) = 0

Solutions:

x = 6      

3

= 2

Step-by-step explanation: Think my Answer is Wrong or Right? Let me know!

Answer:

x = 6

Step-by-step explanation:

We know:

2x - 3 = x +3

Rearrange the equation:

2x - x = 3 + 3

Combine like terms:

1x = 6

Divide:

x = 6

Answer:

k^20/m^15

reason is because you're multiplying ^3 , ^4 with ^-5, the -5 turn positive since you flip the fraction/division

Answer:

hope this helps

Step-by-step explanation:

Answer: D, 18 inches

This is a very simple question, what they are requiring of you is to just find the length if it is longer than the width by 3 inches. In the question it mentions that the width is 15 inches long ,so, all you have to do is add 3 to 15 and you get 18 inches.

Answer:

12

Step-by-step explanation:

Don't listen to this fool

substitute [tex]-6[/tex] in the equation:

[tex]f(x)=x^{2} -4x+5,\\f(-6)=(-6)^{2} -4(-6)+5\\f(-6)=36+24+5\\f(-6)=\boxed{65}[/tex]

Answer:

zero

Step-by-step explanation:

the slope of a function m: y2-y1/x2-x1

m=-3-(-3)/5-(-5)

m=0/10=0

The slope of the line drawn passing through (- 5, - 3) and (5, - 3) is zero, so option C is correct.

An object having an endless length and no width, depth, or curvature is called a line. Since lines can exist in two, three, or higher-dimensional environments, they are one-dimensional things.

Given:

straight line drawn passing through (- 5, - 3) and (5, - 3)

Calculate the slope of the line as shown below,

[tex]m = y_2 - y_1 / x_2 - x_1[/tex]

m = slope

m = -3 - (-3) / 5 - (-5)

m = 0 / 10

m = 0

Therefore, the slope of the line drawn passing through (- 5, - 3) and (5, - 3) is zero.

To know more about the line:

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Answer:

4x+3x= 7

7x= 7

x = 1

UV=4 is the solution

The value of UV = 4.

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S.

There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators. An equation can be formed without these as well, for example, 5 + 10 = 15. This is an arithmetic equation with no variables.

Given:

UV = 4x, VW = 3x, and UW = 7

UW= UV + VW

7 = 4x + 3x

7 = 7x

x= 7/7

x=1

Hence, UV = 4

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Answer:

the first one is 90, the second is 150, the third is option dStep-by-step explanation:

Answer:

Edge 2020

Step-by-step explanation:

Answer:

F and H

Step-by-step explanation:

From the image attached, the location of the points are E = -9, F = -6, G = -2, H = 6, I = 8. The law of additive inverse states that for a number a, its additive inverse is a number that when added to a equals to zero. This number is usually opposite in sign to a and of the same magnitude i.e -a. The law is given as:

a + (-a) = 0

From the points, F is the additive inverse of H, hence:

F + H = 0

6 + (-6) = 6 - 6 = 0

Hence the two points are F ad H

Answer:

Step-by-step explanation:

It usually works best for factoring to remove any common factors from the coefficients. Here, they are all even numbers, so have a common factor of 2. After taking that out, you have ...

  2(4x² -4x -3)

To factor this, you are looking for factors of (4)(-3) that have a sum of -4.

  -12 = 1(-12) = 2(-6) = 3(-4)

These pairs have sums of -11, -4, -1. So, we are interested in the factors 2 and -6. We can use those to rewrite the middle term, then factor by pairing.

  = 2(4x² +2x -6x -3) = 2((2x(2x+1) -3(2x+1)) = 2(2x -3)(2x +1)

Of these, the factors that are on your list of choices are ...

Answer:

mutiplying it

Step-by-step explanation:

it is multiplying it because 2×2=4

Answer:

multiplying the answer

Answer:

The answer is

Step-by-step explanation:

4(2x-1) - 3(x+5)

Expand the terms in the bracket

That's

8x - 4 - 3x - 15

Group like terms

We have

8x - 3x - 4 - 15

We have the final answer as

Hope this helps you

Answer:

x = 4

Step-by-step explanation:

RT = RS + ST

RT = 36

RS + ST = 36

6x + 1  + x + 7 = 36

6x + x + 1 + 7 = 36  {Combine like terms}

7x + 8 = 36   {Subtract 8 from both sides}

7x + 8 - 8 = 36 - 8

7x = 28   {Divide both sides by 7}

7x/7 = 28/7

x = 4

Answer:

D) hand and arm extended upward ...

is your answer

d) hand and arm extended upward...

Answer:

The answer is

Step-by-step explanation:

D option.

Hope this helps....

Have a nice day!!!

Answer:

a = c * SinФ

Step-by-step explanation:

SinФ = opp / hyp

c = hyp

a = opp

SinФ = a / c

therefore

a = c * SinФ

Answer:

16 cups

Step-by-step explanation:

Answer:

16 is the answer

This isn't an answer, rather a suggestion. I would use the website desmos to help me. But for future reference I can help you.

f(x) = - x+6 is similar to y=-x+6.

Simply plug in random numbers into the variable x (preferably ones that could fit on your paper like 0,1,2,3...)

Answer:

8 tiles

Step-by-step explanation:

For the kitchen floor, each title that ryan used has an area approximately of 110/31.5 ≈ 3.49 square feet

For his bathroom, Ryan would need about: 28/3.49 ≈ 8 titles

Answer and Step-by-step explanation:

Let us assume the number of calls be x

So

For Plan 1

Total monthly charges is $24 for unlimited calls

For Plan 2

There is a charge of $16 and $0.04 per call

We can write as

= 0.04x + $16

a)  Now the inequality equation is

0.04x + $16 > $24

0.04x > $8

x > 200

b)   Now if there are more than 200 calls than Plan 1 is more economical as compared with plan 2

Answer:

4 trucks per hour

Step-by-step explanation:

28/7 = 4

Answer:

Not completely sure but I think it is 4 trucks per hour

Step-by-step explanation:

If they can do 28 in 7 hrs u divide both by 7 to get 4 trucks per hour?

Answer: 2(x-11)

Step-by-step explanation:

Disclaimer: The options are missing. They are as follows:

a. 2(11-x)

b. 11-2x

c. 2x-11

d. 2(x-11)

The algebraic expression that represents the word description: The product of two and the difference between a number and eleven is 2(x - 11). Hence, option d is the right choice.

An algebraic expression is a combination of variables and constants, as well as algebraic operations (addition, subtraction, etc.). Terms are the building blocks of expressions.

We are asked to find the algebraic expression that represents this word description The product of two and the difference between a number and eleven.

We let the unknown number be x.

We are said that the expression is the product of two and the difference between a number and eleven.

The difference between a number and eleven can be written as x - 11.

Now we need the product of this and two, that can be written as:

2(x - 11).

∴ The algebraic expression that represents the word description: The product of two and the difference between a number and eleven is 2(x - 11). Hence, option d is the right choice.

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Answer:

9 tickets for $15

Step-by-step explanation:

9×1.80=16.20

Answer:

2⁸ > 2.38 × 10² > 6³ > 2.16 × 10¹ > [tex]\sqrt{300}[/tex], 300%

Step-by-step explanation:

Given numbers are,

2.38 × 10², √300, 2⁸, 300%, 6³, 2.16 × 10¹

We have to arrange these numbers in the decreasing order(from greatest to least)

2.38 × 10² = 2.38 × 100 = 238

√300 = 10√3 ≈ 17.32

2⁸ = 256

300% = [tex]\frac{300}{100}[/tex] = 3

6³ = 216

2.16 × 10¹ = 21.6

Therefore, decreasing order (from the greatest to least) will be,

256 > 238 > 216 > 21.6 > 17.32 > 3

2⁸ > 2.38 × 10² > 6³ > 2.16 × 10¹ > [tex]\sqrt{300}[/tex], 300%

Answer:

-6x + 3

Step-by-step explanation:

-3(2x - 1)

We use distributive property

so we mulitply the number that is outside of the paraenthesis (-3), to the numbers on the inside (2x - 1)

-3 × 2x = -6x

-3 × -1 = 3

So we have:

-6x + 3

And we cannot combine them so that is the answer.

Hope that helped!

Answer: the answer is 11 to the second power . (omg nvm, no it isn't ... i honestly dont know)

Step-by-step explanation:

Answer:

(4,7), (6,13), and (5,10)

Step-by-step explanation:

To determine if an ordered pair is a solution, substitute the coordinates in and check to see if they are true:

(2,2)

[tex]y=3x-5\\(2)\stackrel{?}{=}3(2)-5\\2\stackrel{?}{=}6-5\\2\neq1[/tex]

Thus, (2,2) is not a solution.

(4,7)

[tex]y=3x-5\\(7)\stackrel{?}{=}3(4)-5\\7\stackrel{?}{=}12-5\\7\stackrel{\checkmark}{=}7[/tex]

Thus, (4,7) is a solution.

(6,13)

[tex]y=3x-5\\(13)\stackrel{?}{=}3(6)-5\\13\stackrel{?}{=}18-5\\13\stackrel{\checkmark}{=}13[/tex]

Thus, (6,13) is also a solution.

Lastly, (5,10)

[tex]y=3x-5\\10\stackrel{?}{=}3(5)-5\\10\stackrel{?}{=}15-5\\10\stackrel{\checkmark}{=}10[/tex]

Thus, (5,10) is also a solution.