Mathematics Middle School

how can bar diagrams help you to write expressions in which letters stand for numbers?

HELP I WILL GIVE BRAINLIEST FOLLOW YOU AND 30 POINTS!!!!!!!!!!!!1

Answers

Answer 1

Explanation/Answer: A bar diagram can be used to represent algebraic expressions or to give examples.

HAVE A GREAT DAY!

Related Questions

I will give brainyest

Answers

2 Large Box=6.24

3 Small box=5.04Answer:

0.14

0.13

0.01

0.48 or -1.2

Step-by-step explanation:

Easye as pie

16 ounce is 2.24

24 ounce is 3.12

ok 2.24/16

0.14 price per ounce

for first one

now second one

3.12/24

0.13price per ounce

second one

0.14-0.13=0.01

for last question

2 large boxes=6.24 dollars

each large box=24ounces

2 boxes=48

0.13*48=6.24

6.24 dollars for 2 large boxes

3 small boxes=5.04

0.14 each ounce and 12 each small box

so 12*3=36

36*0.14

5.04

so if the smalle box had 48 ounces it would costs 6.72

2 Large Box=6.24

3 Small box=5.04

-1.2

now into the ounces

6.72-6.24

0.48

0.14
0.13
0.1
0.48
1.2

A and B are numbers A+B=0. What is true about integers A and B?​

Answers

B and A are a zero because you can’t use those numbers in an equation and get an answer
A and B could both be 0 or they can be the same number but one has to be negative and one has to be positive here are some examples
A= -81
B= 81


A= 12
B= -12

which equation represents a line that passes through points (0, 6) and (2, 0) y = -1/3x + 2 y = -1/3x + 6 y = -3x + 2 y = -3x + 6​

Answers

The answer is y = 3x + 6. I corrected it to 3x becuase it wouldn't work if it was -3x. If -3x is one of the choices then mark that as the answer.

which equation represents a line that passes through points (0, 6) and (2, 0)

y = -1/3x + 2

y = -1/3x + 6

y = -3x + 2

y = 3x + 6​

We have to plug in the coordinates into the equation. If x or y solved from the equation equal a coordinate in the coordinates, then it will be the correct equation.

1) 6 = -1/3x + 2

  -1/3x = 4

  x = 12

This equation doesn't work. Even if the other pair works, it still doesn't satisfy (0,6).

2) 6 = -1/3x + 6

   -1/3x = 0

   x = 0

   0 = -3x + 2

   -3x = -2

    x = 2/3

This equation doesn't work.  Even if the other pair works, it still doesn't satisfy (2,0).

3) 6 = -3x + 2

   -3x = 4

   x = -4/3

This equation doesn't work.  Even if the other pair works, it still doesn't satisfy (0,6).

4) 6 = 3x + 6

   3x = 0

   x = 0

   0 = 3x + 6

   3x = 6

   x = 2

This equation works.

In 4 regular season basketball games, James Harden scored 141 points. Write an equation to represent the number of points scored, y, in x total games.

Answers

Answer:

141÷ 4= x

Step-by-step explanation:

I think it's self- explanatory there

Answer:

y = 35.25x

This is only correct if assuming that he scored the same amount of points in each game.

A business owner bought a product for $20. The business owner sold the product for $32. By what percent was the product marked up?

Answers

Answer:

60%

Step-by-step explanation:

the answer i believe would be 60%

please explain steps

Answers

Answer:

b.

Step-by-step explanation:

you keep the hole number. times the exponent 's. since one of them are negative it will be a fraction.

When using the PEMDAS method, in this problem you would start with simplifying the exponents. Then you would multiply.

can you help on number 5 plzzzzz

Answers

Answer:

outercore

Step-by-step explanation:

outercore is the answer.

Helpppppp meeeee plllleeeaasss

Answers

The rate is 12 per carton.
12 per carton

have a great day!!

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x - 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming.

Which statement best describes the depth of the fish, given this equation?

From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second.

From a starting position of 3 meters below sea level, the fish is ascending 7 meters per second.

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second.

From a starting position of 7 meters below sea level, the fish is descending 3 meters per second.

Answers

I would say d) from a starting position of 7 meters below sea level, the fish is descending 3 meters per second.

Answer:

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second is the answer

Step-by-step explanation:

A company has 95,000 shares of stock to sell stock broker decides to buy 100 shares of the stocks for each of her clients if the company has 75,000 shares of stock remaining after she makes her purchase how many customers does a stockbroker have?

Answers

Answer:B

Step-by-step explanation:because it will be the same thing depending on the amount of people she buys is for hypothetically she buys it for the same amount of people

Answer:

you right a

Step-by-step explanation:

how do you find the area of a triagnle and a rhombus in gerneral
​

Answers

The area of a triangle is calculated using 1/2b*h, where b = the base and h = the height

The area of a rhombus is calculated using pq/2, where p and q equal the length of the diagonals from opposite points.

HELP PLEASE THERE ARE TWO MORE.

Answers

Answer:  y + x = ?

y - x = ?

y times x = ?

y / x = ?

Step-by-step explanation: If 1 is correct tell me, if none are, i will edit :D

40- 45[43x34] then divide iy

Write 0.46 as a fraction in simplest form.
0.46=

Answers

The answer is 23 over 50 or 23/50 what ever you can understand better hope it help
it would be 23/50 because it’s originally 46/100 but that simplified as far down as possible is 23/50

Which graph represents the solution of the inequality 4−x≥10 ? K SO I KINDA DREW THE NUMBER LINE BUT WHERE YOU SEE THE 1ST ARROW FROM THE RIGHT,THAT'S WHERE IT STARTS! PLZ HELP ME ALSO ALL THE NUMBERS ARE NEGATIVE:)

--← ← ← ← ← ←------------------------------------------- A. starts at 6
10 9 8 7 6 5 4 3 2 1 0

-----------------→ →→→→→→→→→→→- B. starts at 6
10 9 8 7 6 5 4 3 2 1 -0

---←----←---←-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0

--------------→ →→→→→→→→→→→→→-------------------------- C. starts at 7
10 9 8 7 6 5 4 3 2 1 -0

Answers

if i’m not wrong the answer should be c

HHHHHHHHHEEEEEEEEELLLLLLLLPPPPPPPP MMMMMMMMMMEEEEEEEEEEEEEEEEE

the government keeps track of fuel prices in time across the United States. The chart shows the average gasoline price by month for 2010.

Average U.S. Gasoline Price
Date
Price per gallon
in dollars
April 2010
2.725
May 2010
2.87
June 2010
2.674
July 2010
2.67
August 2010
2.74

Which list shows the prices of gasoline from the least expensive to most expensive?
2.67, 2.74, 2.87, 2.674, 2.725
2.67, 2.674, 2.725, 2.74, 2.87
2.67, 2.674, 2.74, 2.725, 2.87
2.674, 2.67, 2.74, 2.725, 2.87

Answers

the second choice i believe

Answer:

B

Step-by-step explanation:

Geometry Question!! 10 points!!!

Answers

Answer:

Step-by-step explanation:

just

Can you help me please I’ll give brainliest

Answers

The answer is B I hope it’s right

there are 14 crayons and 30 markers in a pencil box. what is the ratio of crayons to marker

Answers

Answer:

For every 7 crayons there are 15 markers

Step-by-step explanation:

14/30=7/15 because half of 14 is 7 and half of 30 is 15

14:30 - 7:15 when you half 14 and 30.

I will give you the brain thing and extra points. (image below) 6/13

Answers

Answer:

(1,-1)

Step-by-step explanation:

It’s B I am 100 sure

PLEASE HELP ME



Find the slope and y-intercept of the following graph.

Answers

The y-intercept is 2 and the Slope is 2/4 but if you simplify that, it will be 1/2.

Determine whether the graph represents a proportional relationship.

Yes, it is a proportional relationship because the graph goes through the origin
No, it is not a proportional relationship because the graph does not go through the origin
Yes, it is a proportional relationship because the graph is a straight line
No, it is not a proportional relationship because the graph is not a straight line

Answers

No, it is not a proportional relationship because the graph does not go through the origin

It doesn't go threw 0 so it isn't one!

Answer:

Step-by-step explanation:

No, it is not a proportional relationship because the graph does not go through the origin

What does X =?
5x−2=−10−3x

Answers

5x-2=10-3x
8x=-8
8x/8=-8/8
X=-1

Answer:

x = -1

Step-by-step explanation:

55x^ 2 + 62y^2 + 38 − 63X^ 2 + 8
combine like terms
WILL GIVE BRAINLIEST

Answers

Answer:

− 8 x^ 2 + 62 y ^2 + 46

Step-by-step explanation:

heheheh I do math lol

Answer:

-8x^2+62y^2+46

Step-by-step explanation:

55x^ 2 + 62y^2 + 38 − 63X^ 2 + 8

Look at all variables that are similar and bring them next to each other

(55x^2 -63x^2)+(62y^2)+(38+8)

Add them together

-8x^2+62y^2+46

Hope this help!

An electrician needs 3 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 3/4 of a roll of wire?

Answers

Answer:

He can wire

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

of a room with 3/4 of a roll of wire.

Step-by-step explanation:

We can solve by using proportions.

Let's set it up.

[tex] \frac{3 \: rolls}{1 \: room} = \frac{ \frac{3}{4} \: of \: a \: roll}{x} [/tex]

We are now going to cross multiply. By cross-multiplting, you would get:

[tex] \frac{3}{4} = 3x[/tex]

You are now going to divide both numbers by 3 in order to get the x by itself.

[tex] \frac{ \frac{3}{4} }{3} = \frac{3x}{3} [/tex]

By dividing, you get:

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

Therefore, the answer is 1/4.

The number of rooms he can wire with 3/4 of a roll of wire is 1/4.

What are proportions?

Proportion, in general, is referred to as a part, share, or number considered in comparative relation to a whole. Proportion definition says that when two ratios are equivalent, they are in proportion. It is an equation or statement used to depict that two ratios or fractions are equal.

Given that, an electrician needs 3 rolls of electrical wire to wire each room in a house.

Let the number of rooms he can wire with 3/4 of a roll of wire be x.

Now, the proportion is

[tex]\frac{3}{1}=\frac{\frac{3}{4} }{x}[/tex]

3x=3/4

x=1/4

Therefor, number of rooms he can wire is 1/4.

To learn more about the proportions visit:

https://brainly.com/question/7096655.

#SPJ2

Drag and drop the responses into the boxes to correctly complete the statements.

Answers

Answer:

#1 tnis vert

#2 i(a plus b)power of 2 =+c2  

#3 never

Step-by-step explanation:

Answer:

#1 this vert

#2 i(a plus b)power of 2 =+c2  

#3 never

A lost turtle - swimming 13 feet below the surface of the water - begins to ascend at 0.5 foot per second. In hopes of (harmlessly) capturing the turtle, a diver jumps into the water to a depth of 4 feet before descending at a rate of 0.25 foot per second.

a) Write an equation to model the position of the turtle at any given time.



b) Write an equation to model the position of the diver at any given time.



c) After how long will the diver be able to catch the turtle?



d) At what depth will the diver be able to catch the turtle?

Answers

Answer:

(0.25-13) 0.5

Step-by-step explanation:

Answer:

16(-18)

Step-by-step explanation:

THIS IS THE SECOND ONE (Sorry for caps :>)

Answers

It would be 288 calories per 1 slice
288 calories for one slice

Who ever answer this question with explanation will get Branily!!!!!

Answers

The answer is 36 dollars.

The percentage is 30%, so you’d multiply 120 x .3 to get the amount for that 30%. I hope this helps!

Answer:

36

Step-by-step explanation: 120/1 x 30/100 = 36

pleasee help find the equation

Answers

Answer:

Step-by-step explanation:

Iii

Answer: i dont even know?

Step-by-step explanation:

For lunch with her friend, Kristionna is purchasing several side items that cost a total of $18, plus 2 sandwiches. The total cost of the meal is $32 and is represented by the equation 2x + 18 = 32. How much does each sandwich cost?
A) $14
B) $22
C) $7
D) $28

Answers

Answer:

C

Step-by-step explanation:

thee equation they give us is 2x + 18 = 32. Our goal is to isolate x.

First, subtract 18 from both sides to eliminate it.

2x + 18 = 32 ---> 2x + 18 - 18 = 32 - 18 ----> 2x = 14

Next, separate the 2 from the x by dividing it from both sides:

2x = 14 ----> 2x/2 = 14/2 ----> x = 7

By solving this equation, we find that x, or one sandwich, costs $7.

Its C did my math in a paper........:)
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