Mathematics Middle School

Jennifer's bill for lunch was $15.00
If Jennifer left a 20% tip, which proportion would BEST represent how to find how much tip she should leave?
A. x/15 = 100/20
B. x/15 = 20/100
C. 15/x = 20/100
D. 20/x = 15/100

Answers

Answer 1

Answer:

a

Step-by-step explanation:

Related Questions

Why does the sum of the two given angles equal 180°? (2x+1)+(x-7)=180

Answers

Answer:

because its a straight line

Step-by-step explanation:

Answer:

Since the sum of the angles is 180 degrees and each angle is represented by the respective algebraic expressions, then to find the value of x, just add the expressions up, set that sum equal to 180, and solve for x. So, (2x-7)+(x+25)+(3x+12)=180 is our equation. Now we just simplify and solve for x.

(2x-7)+(x+25)+(3x+12)=180

6x+30=180 b/c 2x+x+3x=6x and -7+25+12=30.

6x=150 subtract 30 from both sides of the equation

x=25.

Step-by-step explanation:

Hope this helps!

Please find an equivalent expression to 2(n+1)-3

Answers

Answer:

2n-1

Step-by-step explanation:

Answer:

(2n-2)-3

hope this helps

have a blessed day :)

:D

PLEASE SOLVE THESE 3 EASY 6TH GRADE QUESTIONS WILL GIVE BRAINLY

Answers

Answer:

3x5

Step-by-step explanation:

it will be 3x6 and that equals =18

What is the solution to this system of equations?

A: (-1, 2)
B: (4, -2)
C: (2, -1)
D: (-2, 4)

Answers

Answer:

D. (-2, 4)

Step-by-step explanation:

The answer is D: (-2,4)

Please answer!! What's the slope?

Answers

Answer:

B.) undefined

Step-by-step explanation:

It is a vertical line therefore is undefined because

a horizontial line is a line with zero slopea diagnal line from the left bottom to the right top { / } is a line with a positive slopea diagonal line from the left top to the right bottom { \ } is a line with a Negitive slope.

I'LL GIVE BRAINLIEST

Answers

Answer:

i think a triangle

Step-by-step explanation:

Susan incorrectly factored the expression below.

Answers

12a+15b+9 cause 3*4a=12a 3*5b=15 and 3*3=9

Don't do for points.

Don't get your account banned.

Don't be me

Answers

the last option 9,000
9000 nsnsbjsisnssvusjsbsbshsn

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Answer:

157.88 is the correct answer

1157.88 is the correct answer

I WILL GIVE YOU BRAINLIEST IF YOU HELP ME WITH THIS MATH WORKSHEET (1/2)

Answers

Answer:

Step-by-step explanation:

1) corresponding angles

2)alternate interior angles

3)alternate interior angles

4)corresponding angles

2x-7=123

2x=130

x=65

5)corresponding angles

6x-11=5x

6) alternate interiot

40=14-2x

26=-2x

-13=x

Yes^that answer is correct ^

select the equation that represents the problem let x represent the unknown number

Answers

Answer:

D

Step-by-step explanation:

Answer: D is the answer

Step-by-step explanation:

Frank is going to plant x vegetable seeds in one garden and 4x+7 vegetable seeds in another. How many seeds is going to​ plant?

Answers

Answer: Because Frank is planting x seeds in one and 4x+7 in the other, you need to add both of those together.

x+4x+7= 5x+7

Hope this helped! :3

-Jazzy <3

If Frank is planting b seeds in one and 5b + 10 in the other, the expression showing the total is b + (5b + 10), or 6b + 10 seeds.

the measure of an angle is 12 degrees. what is the measure of its supplement

Answers

Since the measure of an angle is 12 degrees less than the measure of its supplement, then x=180-x-12 or 2x=168 or x=84 and 180-x=96. Step 4. ANSWER: The angle is 84 degrees and its supplementary angle is 96 degrees.

Answer:

168

Step-by-step explanation:

Supplementary angle is two angles that total 180 degrees.

180-12=168

pls help me

the vertices of a triangle are A(2,4) B(2,1) C(3,1).reflect the triangle in the x axis then rotate it 90 degrees counterclockwise about the orgin. what are the new coordinates of the triangle?
​

Answers

Answer:

A:(4,2) B:(1,2) C:(1,3)

Step-by-step explanation:

During a rotation 90 degrees ccw the points go from (x,y) to (-y,x)

Please help ASAP! Thank u

Answers

Answer:

10

Step-by-step explanation:

A to B = 3

B to C = 2

2+2+3+3= diez

The answer is 10 for your question

A)
-2+x=-x+2

Answer =

Answers

Answer:

The answer is x= 2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hoped this helped!

Brainly, Please?

The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?
3.844E5 kilometers
3.844 x 105 kilometers
3.844E-5 kilometers
3.844E-6 kilometers
3.844 x 106 kilometers
.
3.844E6 kilometers
3.844 x 10-6 kilometers
3.844 x 10-5 kilometers
ya ​

Answers

3.1456 that’s should be the answer of the scientific notation in short you

Answer:

B and E

Step-by-step explanation:

A rectangular flag for a club has the following design on it.



What is the area of the shaded region on this flag?
А
75 in
B
90 in
C
141 in 2
D
216 in

Answers

Answer:

216!!

Step-by-step explanation:

Answer:

D is the correct answer here

Each of these equations holds true for one value of x from the set {5, 12, 15, 18}. Arrange the equations in increasing order of the x-values that make them true.
x + (x − 10) = 26
6x − 15 = 75
2(2x − 1) = 46
5x − 3x = 10

Answers

Answer:

5x - 3x = 10

2(2x - 1) = 46

6x - 15 = 75

x+(x - 10) = 26

Step-by-step explanation:

5x - 3x = 10

2x = 10  Divide by 2

x=5

2(2x - 1) = 46   Distribute the 2

4x - 2 = 46  Add 2

4x = 48  Subtract by 4

x = 12

6x - 15 = 75  Add 15

6x = 90  Divide by 6

x=15

x + x - 10 =26  Add the x's together and the 10

2x = 36  Divide by 2

x = 18

not my work

Answer:

26>42+1/2=100

Step-by-step explanation:

hoppe this help

On Saturday, Lukas drove 4x – 5 miles. On Sunday, he drove 3x – 10 miles. What is the difference in miles driven?

Answers

Step-by-step explanation:

4x-5-(3x-10)=4x-5-3x+10=x+5 miles! Hopes This Helps!

Answer:

4x-5-(3x-10)=4x-5-3x+10=x+5 miles

Step-by-step explanation:

i know because i did this

Please help just answer any that you can think of

Answers

Answer:

[tex] \frac{5}{100} \times \frac{30}{1} [/tex]

HELP PLEASEEEE!!!!!!!!!!

Answers

I think the permeate would be 8cm, correct me I’m I’m wrong. Sorry if I got the answer incorrect

study -----------------

Gina visited the aquarium with some of her cousins, aunts, and uncles. The group bought 20 admission tickets for $340. Adult tickets cost $20, and children’s tickets cost $15. How many adult tickets and how many children tickets did the group buy?

Write a system of equations.

Answers

Answer:

Look at the attachment

Step-by-step explanation:

There are 12 children tickets did the group buy.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The group bought 20 admission tickets for $340.

And, Adult tickets cost $20, and children’s tickets cost $15.

Let number of children = x

And, Number of adult = y

Hence, We get;

The system of equations are,

x + y = 20  

y = 20 - x .. (i)

And, 15x + 20y = 340

3x + 4y = 68 .. (ii)

Substitute the value of y from (i) in (ii);

3x + 4(20 - x) = 68

3x + 80 - 4x = 68

80 - 68 = x

x = 12

Thus, There are 12 children tickets did the group buy.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

HHHHHHHHHEEEEEEEEEEEEELLLLLLLLLPPPPPPPPPPPP

Answers

Answer:

a = -3

b = 18

c = -15

Step-by-step explanation:

13 18 9 those are the answers

may someone please help me understand something in class? its theoretical and experimental probability basically just probability in a whole and I can’t understand. I don’t need the definition I just want someone to make me understand in a simple way like a tutor, but anyways please help me understand this. Examples would work, anything. Just help me understand. Thanks anyways.

Answers

Experimental probability is the results of an experiment, let's say for the sake of an example marbles in a bag. Experimental probability would be drawing marbles out of the bag and recording the results. Theoretical probability is calculating the probability of it happening, not actually going out and experimenting.

hope this helped.

Elspeth knows that Pi times r almost-equals 9.42 centimeters. What would she need to do to find the circumference?
She could multiply 9.42 by 2.
She could multiply 9.42 by Pi.
She could divide 9.42 by 2 to find the radius, and then square the radius.
She could divide 9.42 by Pi to find the radius, and then multiply 9.42 by the radius.

Answers

Answer:

First one

Step-by-step explanation:

It will be the first one

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Its greater then less I think.
It’s great than———————————-

I have a triangle: Angle A = 3x +28; Angle B = 5x +52; Angle C = 2x - 10: Solve for X

Answers

I have no clue if I even did this right but here’s my work. I don’t wanna get it wrong for you!
Answer: x=11


Explanation: The anglers in a triangle must all add to 180.

Therefore, we can use the equation 180=3x+28+5x+52+2x-10

Combing like terms gives us 180=10x+70

Solving for x gives us 11.

To check our work, we can plug in 11 for x.

3(11)+28+5(11)+52+2(11)-10=180.

Henry's dog ate 8 cans of dog food this week. Each can contain 55.4 grams of protein. How much protein was this in all?

Answers

Answer:

443.2 grams

Step-by-step explanation:

Each can contains 55.4 grams of protein, and there are 8 cans, so the answer would be 55.4*8 = 443.2 grams.

The answer is 443.2 grams of protein.

Since there are each can had 55.4g of protein, and Henry’s dog ate 8 of them, you can think of it as 55.4 • 8 = 443.2

Please help ASAP!
Evaluate the expression : 5/9 ( F - 32) when F = 122
1. 50
2. 60
3. 40
4. 20

Answers

1.50 5/9(122-32)=5/9(90)= 50

Answer: 50

Step-by-step explanation:

5/9 (f-32) if f = 122 you take 122 and subtract 32 because of order of operations and now you have 5/9 (90) and then you multiply 5/9 times 90 and you get 50

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