Mathematics High School

Which model shows two equal expressions when c = 5?

c + 1 = 1 + 1 + 1 + 1 + 1 + 1

c + c = 1 + 1 + 1 + 1 + 1 + 1

c + c + c + c + c = 1 + 1 + 1 + 1 + 1

c + c + c + c + c = 1

Answers

Answer 1

I say.... The first one! :D

Answer 2

Answer:

C + 1 = 1 + 1 + 1 + 1 + 1 +1

Step-by-step explanation:

Related Questions

Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.
Which equations can be used to find how much money Sam has left? And don’t understand.

Answers

Answer:

First Answer Yay

I dont need the work just the answer pls :)

Answers

Answer:

[tex]\sqrt{29}[/tex]

What is the solution for -3x ≥ 36? x ≤ -12 x ≥ -12 x ≤ -108 x ≥ -108

Answers

Answer:

its a

Step-by-step explanation:

Answer

im postive its A:)

Step-by-step explanation:

Melody is running in a 5K event. Her father
records her time at three places during the
event as shown in the table below.

Answers

Answer:

a

Step-by-step explanation:

i just know

Jessica waxes 20m squared of the floor in 3/5 of an hour and waxes the floor at a constant rate. How many square meters can she wax per hour?

Answers

Answer:

E

Step-by-step explanation:

Answer:

33.3333333

Step-by-step explanation:

A bag of marbles can be shared equally among 3, 4, 5, 8 or 10 people with none left over. What is the smallest number of marbles that could be in the bag?

Please help this is due at 11:59

Answers

Answer:

120

Step-by-step explanation:

the lcm of those numbers is 120 I believe.

Pls help with the question in the picture

Answers

Answer:

Step-by-step explanation:

m∠ABC = [tex]\frac{1}{2}[/tex] m∠AOC = 54°

Answer: 54°

because ∠ADC is the  angle at the center of the arc AC and ∠ABC  is the inscribed angle of the arc AC

=> m∠ABC = 1/2. m∠ADC = 108/2 = 54°

Step-by-step explanation:

What is the solution to this system of equations?
5x + 2y = 29
x + 4y = 13

Answers

50 percent is c.x=5,y=2.

Answer:

X= 5, y= 2

Step-by-step explanation:

What is x=7 in slope intercept form
Please help

Answers

Answer: x=7 or undefined

Step-by-step explanation:

We can't write x=7 in slope intercept form, since it doesn't have an actual slope or y-intercept. You could put undefined, since the slope is undefined.

Can someone tell me the answer and explanation plz I’ll give brainlist and points

Answers

Answer:

b

Step-by-step explanation:

I double checked, its b

Write an equation of the line through the point (–2, 5) that is perpendicular to the line y = 2/3x-2

Answers

Answer:

y= -3/2x + 2

Step-by-step explanation:

which phrase represents 3y +9

Answers

please list the phrases if you would like to get an accurate answer :)

please help me! I am struggling lol

Answers

9x+45 = 10x - 120
X = 165

Write the equation based on the graph

Answers

Answer:

3x+3

Step-by-step explanation:

rise over run and y-intercept

Christian walked directly south for 3.5
miles then walked 4.5 miles directly
east. How far is he from where he started

Answers

X is approximately equal to 5.7 miles

Mariza é costureira e, para determinar o comprimento de elástico, em cm, que utiliza na confecção de determinado modelo de calça, ela recorre à expressão x2+2y . Nessa expressão, x e y são medidas que variam de acordo com o tamanho da calça a ser produzida. Para o tamanho P dessa calça, ela utiliza x=40 cm e y=15 cm

Answers

X = 40, Y = 15
40(2) + 15(2) = 80 + 30 = 110 :)

Bobby and Petra are running a lemonade stand and they charge 45 cents for each glass of lemonade. To break even they must make $25. How many glasses of lemonade they must sell to break even?​

Answers

Answer: 56

Step-by-step explanation:

The expression (-4)-1)(3)(-2) is equal to

Answers

-4 times -1 is 4
4 times 3 is 12
12 times -2 is -24

what is the value of f (4) if it is defined by f (x) =2x+3

Answers

Answer:

11

Step-by-step explanation:

Substitute 4 for x

2(4) +3

Answer:

11

Step-by-step explanation:

F(x) = 2x+3 is just a function, so if you replace one of the "x" with 4 you have to replace the other one so it just becomes

F(4) = 2(4) + 3 then you do 2(4) = 8 then add 3 to it and it gets you 11.

hope this helps

Of the 520 students participating in a chess tournament, 35% were male. How many females were in the tournament?

Answers

Answer:

182

Step-by-step explanation:

take 520 and multiply by 0.35

The number of female students participated in a chess tournament is 338.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Given that, 520 students participating in a chess tournament, 35% were male.

Number of male students = 35% of 520

35/100 ×520

= 0.35×520

= 182

So, the number of female students

= 520-182

= 338

Therefore, the number of female students participated in a chess tournament is 338.

To learn more about the percentage visit:

brainly.com/question/24159063.

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Which property is illustrated by the equation 3 (m n) = (3 m) n?
A. associative property
B. commutative property
C. distributive property
D. identity property

Answers

Answer:

its A   <33

Step-by-step explanation:

John paints 2 portraits in 8 hours, 3 portraits in 12 hours, and 5 portraits in 20 hours. Which statement correctly describes this situation?

Answers

Answer:

1 portrait is painted every 4 hours

Step-by-step explanation:

Okay so there aren't any statements but I realized that he paints 1 portrait every 4 hours

If this isn't an option comment them and I will try to see if any match up correctly.

Find the measure of

Answers

Answer:

180-43=137....................

Plz somebody help me ?

Answers

Answer:

x = 10

Step-by-step explanation:

these are corresponding angles

4x = 3x + 10

x = 10

PLSSSSSS HELP ME I WILL GIVE BRAINLY

Answers

Answer: (2,2)

Step-by-step explanation:

The solution of the system of equations is the intersection point, or the point where both lines meet. Looking at the graph, we see that the blue and red line meet at (2,2). That means the solution is (2,2).

We can also solve this algebraically. Since we are given that y=x, we can plug that into the equation and solve.

y+2y=6       [combine like terms]

3y=6            [divide both sides by 3]

y=2

Since we are told that y=x, we know that x is also 2. This tells us that the solution is also (2,2).

3) WeSell4Less car dealership has 175 cars in their sales lot. On average they sell 20% of their cars in a month. In the next month how many cars would should they sell? please help me solve this

Answers

Answer:

They should sell 35 cars next month.

Step-by-step explanation:

From the information given, you know that the dealership sells 20% of their cars in a month and you should calculate 20% of the amount of cars they have in their sales lot to know the amount of cars that they should sell next month:

175*20%=35

According to this, the answer is that they should sell 35 cars next month.

Which pair of complex numbers has a real-number product?
* (1 + 3))(61)
* (1 + 3) (2-3)
* (1 + 3) (1-3)
* (1 + 3) (31)

Answers

Answer:

(1 + 3i)(1 - 3i)

Step-by-step explanation:

The product of a complex number and its conjugate produce a real number.

given a ± bi the conjugate is a ∓ bi ← where a and b are real, then

(a + bi)(a - bi)

= a² - b² ← a real number

The only pair of conjugate complex numbers in the list is

(1 + 3i)(1 - 3i)

The pair of complex numbers that has a real-number product is:

(1 + 3) (1-3) = -8

Option C is the correct answer.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

For a pair of complex numbers to have a real-number product, their imaginary parts must cancel out when the product is expanded.

Let's expand each pair of complex numbers and see which one has a

real-number product:

(1 + 3) x (61) = 61 + 183i

This product has a non-zero imaginary part, so it is not a real number.

(1 + 3) x (2-3) = -5 + 5i

This product has a non-zero imaginary part, so it is not a real number.

(1 + 3) x (1-3) = -8

This product has no imaginary part, so it is a real number.

(1 + 3) x (31) = 124 + 124i

This product has a non-zero imaginary part, so it is not a real number.

Therefore,

The pair of complex numbers that has a real-number product is:

(1 + 3) (1-3) = -8

Learn more about expressions here:

https://brainly.com/question/3118662

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Vijay’s wages were increased from £115 per week to £130 per week.

What was the percentage increase to one decimal place?

Answers

Answer:

13%

Step-by-step explanation:

Increase = (New Number - Old Number) / Old Number

(130 - 115) / 115

15/115 = 0.130434783.

0.130434783 * 100 (to get the percentage) = 13.0%

what’s the slope of (5,9) and (3,2)

Answers

Answer:

m=7/2

Step-by-step explanation:

The president wife is leading a humanitarian mission.
A. presidents
B. president's
C. presidents'
D. presidentes'

Answers

Answer:

B

Step-by-step explanation:

Technically it's describing something that belongs to the president.

Answer:

A

Step-by-step explanation:

I chosen A because it is the right answer

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