Mathematics High School

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Answers

Answer 1

Answer:

c =2

Step-by-step explanation:

2(6c+2)+3c=2 (19 -c)

1. Distribute

2(6c +2 ) + 3c = 2 ( 19 - C )

12c + 4 +3c = 2 (19 - C )

2. Combine like terms

12c + 4 + 3c = 2 ( 19 - c )

15c + 4 = 2 (19 - c )

3. Rearrange terms

15c + 4 = 2( 19 - C )

15c + 4 = 2 ( -c + 19 )

4. Distribute

15c + 4 = 2 ( -c + 19 )

15c + 4 = -2c + 38

5. Subtract 4 from both sides of the equation

15c + 4 = -2c + 38

15c + 4 -4 = -2c + 38 -4

6. Simplify

Subtract the numbers

15c = -2c +34

7. Add 2c to both sides of the equation

15c = -2 +32

15c +2c = -2c + 34 + 2c

8. Simplify

Combine like terms

17c = 34

9.Divide both sides of the equation by the same term

17c = 34

17c/17 = 34/17

10. Simplify

Cancel terms that are in both the numerator and denominator

Divide the numbers

c = 2

Related Questions

7. Mrs. Bauer and her family went to dinner. Their dinner bill was $56.50 before tax and tip. An 8% sales tax needs to be applied and then they decided to leave a 15% tip. What is their total bill after the tax and then tip is applied?

Answers

Answer:

it will be 56

Step-by-step explanation:

maney because I am 9nyears old

Answer:

it will be 56

Step-by-step explanation:

Which of the following is equal to the expression listed below?
45 + 18
A. (9 +5)(9+2)
B. 9+ (5 x 2)
C. (9 x 5)(9 x 2)
D. 9(5+2)

Answers

Answer:

Step-by-step explanation:

9(5 + 2)

the answer is D

can someone help me with these questions (jimmy if u see this u can help too)

Answers

Answers:

Line of best fit: b = 0.40n+30 The average cost of each extra call is 40 cents.Pete pays 43.60 dollars in a month when he makes 34 calls.

Please read the disclaimer below.

=============================================

Explanation:

Disclaimer: The issue is that without the coordinate values, it's impossible to determine the regression line. It's not clear where some (or most) of the red points are located. Often that's why a table is needed. I would ask your teacher for clarification.

With that said, I'll still give it a shot.

---------------

Part 1

The blue regression line appears to go through the two points (0,30) and (50,50). Let's find the slope through this line

m = (y2-y1)/(x2-x1)

m = (50-30)/(50-0)

m = 20/50

m = 0.40

The y intercept is b = 30 since the blue line appears to cross the y axis at this location.

So y = mx+b turns into y = 0.40x+30

Replace x with n and replace y with b

We go from y = 0.40x+30 to b = 0.40n+30 which is the regression line.

Again this is all based on the assumptions that the blue line goes through (0,30) and (50,50).

---------------

Part 2

Assuming we have the correct regression equation, we can immediately see that each extra call costs $0.40 which is the same as 40 cents. So it's 40 cents per call. This is the slope value, which is the rate of change. Each time n goes up by 1, b goes up by 0.40

Because the regression line estimates the actual observed values, we won't always land on a red point. But the goal is to get as close as possible.

----------------

Part 3

Again assuming we have the correct regression equation, we plug in n = 34 and evaluate to determine the bill

b = 0.40*n + 30

b = 0.40*34 + 30

b = 43.60

Pete would pay $43.60 if he made 34 calls.

An ice cream shop uses 6 bananas to make 4 identical sundaes. How many bananas are used in each sundae?

Answers

Answer: 1.5 bananas per sundae

Step-by-step explanation:

There was a total of 6 bananas used in making 4 sundaes.

To find the number of bananas used per sundae, you should divide the number of bananas by the number of sundaes.

= No. of bananas / No. of sundaes

= 6 / 4

= 1.5 bananas per sundae

Which part of this graph shows a nonlinear relationship?

Answers

Answer:

B. 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Linear means in a straight line, and 2 is not in a straight line

You estimate that a puppy weighs 12 pounds. The actual weight of the puppy is 14 pounds. Find the percent error. Round your answer to the nearest hundredth of a percent.

Answers

Answer:

The Estimated weight of the puppy = 12 pounds

Actual weight of the puppy = 14 pounds

Difference in estimated weight and actual weight = 14 - 12

= 2 pounds

⇒ [(14 - 12)*100]/14

⇒ (2*100)/14

⇒ 200/14

⇒ 14.285 %

Can you please help me answer this picture

Answers

EQUATIONS

We'll solve this equation:

5x + 17 = 4(3x - 1)

First, let's apply the distributive property:

‎ ‏‏‎5x + 17 = 4(3x - 1)

‎ ‏‏‎5x + 17 = 12x - 4

Now, add 4 to both sides of the equation:

‎ ‏‏‎5x + 17 = 12x - 4

5x + 17 + 4 = 12x - 4 + 4

‎ ‏‏‎5x + 21 = 12x

Substract 5x from both sides:

‎ ‎ ‏‏‎5x + 21 = 12x

5x - 5x + 21 = 12x - 5x

‎ ‏‏‎‎ ‏‏‎‎ 21 = 12x - 5x

‎ ‏‏‎‎ ‏‏‎‎ 21 = 7x

Now, divide both sides by 7

‎ ‏‏‎‎ 21 ÷ 7 = 7x ÷ 7

‎ ‏‏‎‎ ‎ ‏‏‎‎ 3 = x

Therefore, x = 3.

‎ ‏‏‎‎

B. The equation has one solution.

Answer:

Option B. One Solution

Step-by-step explanation:

5x+17= 4(3x-1)

5x+17 = 12x-4

17+4 = 12x-5x

21. = 7x

thus, x=3 (one solution)

Does this graph represent a proportional relationship?
Explain.

Answers

ANSWER: no

EXPLAIN: because a proportional relationship graph would have a straight line running through the origin

Determine the value of the variable from the image below

Answers

Answer:

Step-by-step explanation:

32+28+30 is 90 degrees which is a right angle

A 56 inch pipe is cut into two pieces. One piece is three times the length of the other. Find the length of the shorter piece.
The shorter piece is ___inches long.

Answers

Answer:

Piece A: 42 inches

Piece B: 14 inches

Step-by-step explanation:

If the pipe is 56 inches long and divided into 2 parts with a 3;1 ratio, then you would divide 56 by 4 (3;1->3+1) to get 14. 14 would be the smaller piece, then you'd multiply 14 by 3 to get 42 inches because theres 3 parts for the larger piece in the ratio of 3;1. :) the explanation is probably really weird but the answer should be correct anyways

help me and I will give u brain..................

Answers

It would probably be B

Help what do I divide it with to get the answer

Answers

Answer:

2.95, 2.25 and 2.016

Step-by-step explanation:

Calculate the slope of the line.Please help!!

Answers

the slope is 2/3 you’re welcome :)

How do i find the inverse of a function?

Answers

Answer:

the inverse of something is a fraction

Step-by-step explanation:

If you wanna inverse something from a number do 5 = 1/5

If u wanna do fraction to a number 1/5=5

and if you have a term it would just be that term like x if you were to inverse 5x = x

I REALLY NEED HELP :(

When the expression 102021 − 2021 is evaluated, the result is a very large number.
You probably do not have enough time to perform the calculation. So, in an
effort to save you some time and paper, instead of evaluating the expression
102021 − 2021, determine the sum of the digits in the difference.

Answers

Answer:

100,000

Step-by-step explanation:

what equation matches this situation.mai biked x miles han biked 2/3 more than that

Answers

Answer:

i need more information like how much mai biked

Step-by-step explanation:

answer as soon as possible please !

Answers

Answer:

Step-by-step explanation:

4/3 = x/45

45/3=15

15*4=60

x=60

Find the x-intercept and y-intercept of the line.
- 8x+ 5y = 18
Write your answers as exact values. Do not write your answers as ordered pairs.
x-intercept:
Y-Intercept:

Answers

X= -9/4
Y= 18/5

I’m so sorry if I’m wrong:(

A recipe for sparkling water calls for 1 1/2 quarts of sparkling water and 3/4 quarts of grape juice how much sparkling water will you need to mix 9 quarts of grape juice

Answers

Answer: 18 quarts

Step-by-step explanation:

Quantity of sparkling water and gape juice are used in proportion in the recipe.

Let x= quantity of sparkling water when 9 quarts of grape juice is used.

Then,

[tex]\dfrac{x}{9}=\dfrac{1\dfrac12}{\dfrac34}\\\\\Rightarrow\ =\dfrac{x}{9}=\dfrac{\dfrac32}{\dfrac34}\\\\\Rightarrow\ \dfrac{x}{9}=\dfrac{4}{2}\\\\\Rightarrow\ x= 2\times9\\\\\Rightarrow\ x=18[/tex]

Hence, 18 quarts of sparkling water is required to mix with 9 quarts of grape juice.

does anybody know this answer I'm just checking the (answer asap)

Answers

Answer:

you are right

Step-by-step explanation:

C=d*pi

a. for d/C, it would be d/C=1/pi

c. for pi/C, it would be pi/C=1/d

d. for pi/d, it would be I don't wanna do, but it doesn't matter cause it's wrong

therefore, C/d=pi

is correct

Are the fractions equivalent?

Answers

Answer:

7. no

8.yes

9.yes

10.no

I hope this helps!

Answer:

7. no

8. yes

9. yes

10. no

Step-by-step explanation:

what is the weight shown by the arrow?

Answers

Answer:

550

Step-by-step explanation:

The ascent can be modeled by a different proportional relationship y=kx. What is the value of k in this case?

Write your answer as a simplified fraction

Answers

Answer: the the answer

35814/3600

please answer the question

Answers

Answer:

It is B

Step-by-step explanation:

If you multiply 35 with the number on the left of the chart, it gives the exact number, thus it is correct

Two step equation with the solution of 5 ..

Answers

Answer:

2 times 7, 14-9

Step-by-step explanation:

2 times 7 = 14

14-9=5

: The population of birds on an island is estimated to increase by 10% every year.
The population of birds on the island is 20000.
Calculate an estimate for the population of birds in three years time.

Answers

Answer:

26620

Step-by-step explanation:

20,000 x 10% is 2000 = 22000

22,000 x 10% is 2200 = 24200

24200 x 10% is 2420 = 26620

Answer:

22,000

Step-by-step explanation:

equations is total amount = amount x (multiplier)^years

step one: 100+10 over 100 = 1.1 which the multiplier

step two : substitute 20,000 X(1.1)^3

3 because of how may years

and step three enter on calculator and get 22,000 as the answer

Convert from Standard Form to Slope-Intercept Form.
2x + 5y = 40

pls help

Answers

Answer: y = -2/5x +8

Step-by-step explanation:

5y = -2x + 40 (subtract 2x from both sides)y = -2/5x + 40/5 (divide both sides by 5)y = -2/5x + 8 (simplify)

There are 3,785 milliliters in 1 gallon, and there are 4 quarts in 1 gallon. How many milliliters are in 1 quart?

Answers

I’m gonna say 946.352 milliliters are in a quart.

Vx+5=x-1
What are all the values of x that make the equation true?
O A. -1 only
B. 3 only
C. 4 only
D. -2 and 3
O E. -1 and 4

Answers

I’ll say D I have a good feeling about it lol

Write an equation of the line that passes through (-3,3) and is perpendicular to the line 2y = 8x - 6.

Answers

Answer:

y = -0.25x + 2.25

Step-by-step explanation:

First, you can simplify the equation of the line it's perpendicular to (2y = 8x - 6) by dividing both sides by 2. This means you would get y = 4x - 3. From that you can conclude that the slope of that line is 4.

Lines always have a slope that is the negative reciprocal of the slope of the line they are perpendicular to, so you know the slope of the line is going to be -1/4.

So far, you have the equation y = -1/4x + b and you have to find b.

You can substitute in the point (-3, 3) so you would have 3= -1/4 * -3 + b

Solving,

3 = 3/4 + b

b = 2 and 1/4

Therefore the equation is y = -1/4x + 2 1/4 or y = -0.25x + 2.25

Other Questions

According to this map which numbered state has the highest population growth rate?a)4 b)1 c)3 d)2 Mr. Gonzales showed students part of the prime factorization of 90. One factor is missing. 2 32 __ Does this semicolon work in this statement?By seeing all her actions and the way she thinks, I would say she is at stage 3; because although she doesnt want to do all these things, she still wants approval from her parents.also if there is anything on there you would change that would help a lot :) What is the growth rate of the function f(x)=1.35x? Help!me plz I need helpp Q1:Is the expression x^3x^3x^3 Equivalent to x^333? Why or why not? Explain your reasoning.Q2:Rewrite in the simplest radical form 1/ -3/ 6/xQ3:Rewrite in the simplest rational exponent form x ^4x. Show each step of your process.Q4:Rewrite in the simplest radical form x^5/6 / x^1/6. Show each step of your process.Q5:Which of the following expressions are equivalent? Justify your reasoning.A. 4x^3B. 1 / x^-1C. ^10x^5x^4x^2D. x^1/3x^1/3x^1/3 Some of the types of energy in the electromagnetic spectrum will be familiar, such as X-rays, microwaves, and radio waves. The most important part of the spectrum in photosynthesis is visible light. What are the colors of the visible spectrum Someone pls help me with this!!!! Pls find the sum of -3x square- 4x +3 and 2x square -x +3 Suppose that you are on a desert island and possess exactly 20 coconuts. Your neighbor, Friday, is a fisherman, and he is willing to trade 2 fish for every 1 coconut that you are willing to give him. Another neighbor, Kwame, is also a fisherman, and he is willing to trade 3 fish for every 1 coconut.a. On a single figure, draw budget lines for trading with Friday and for trading with Kwame. (Put coconuts on the vertical axis.) b. What is the slope of the budget line from trading with Friday? c. What is the slope of the budget line from trading with Kwame? d. Which budget line features a larger set of attainable combinations of coconuts and fish? e. If you are going to trade coconuts for fish, would you rather trade with Friday or Kwame? what is the perimeter of this figure? Happy Paws charges $19.00 plus $5.50 per hour to keep a dog during the day. Woof Watchers charges $10.00 plus $6.75 per hour. Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable h to represent the number of hours. fill in the blanks and read what it says For the construction below, which theorem guarantees that AB is parallel to DC? Activity 1.5. The speech situations below will require a particular type of speechto use. Fill the table with appropriate type of speech context and how each is madeand done.SPEECHContext TypeSituation1. Reporting inClassSample Speech2. Asking a teacherabout theperformancetask on speechdelivery If Alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form 4. What steps can be taken to find the product of 0.92 and 1,000?Move the decimal point 1 place to the right and annex 1 zerob. Move the decimal point I places to the right and annex 2 zeros.Move the decimal point 3 places to the right and annex 1d. Move the decimal point 3 places to the right and annex 2 zeros. the amount of power exerted by a machine that applies a force of 550 N over a distance of 10 m in a time of 5 seconds A.independent assortmentB.crossing overC.anaphase 1 of meiosisD.incomplete dominance I just love him; he cracks me up! Complex, Simple, or Compound?