Mathematics High School

Which of the expressions below are equal to 3x + 9y + 15? Select all that apply.
A) 3(x + y + 5)
B) 3(3x + 3y) + 15
C) 3(x + 3y + 5)
D) 3x + 3(3y + 5)


Answers

Answer 1
Answer:
C) 3(x + 3y + 5)
D) 3x + 3(3y +5)

Related Questions

Set up a proportion to solve: 24 is 25% of what number?

Answers

Answer:

96

Step-by-step explanation:

25% can be written as 0.25

so:

24= .25*x

Divide both sides by 0.25

24 - .25x

.25 - .25

x=96

Evaluate mn when m=8 and n= 1/2

Answers

Answer:

4

Step-by-step explanation:

you just multiply 8(m) by 1/2(n)

Answer would be 4. Multiply 8 by 1/2 and you get 4.

I NEED HELP! I've failed this test twice and need to get it right. HELP PLEASE!

Answers

Answer:

180

Step-by-step explanation:

C + D = 180 degrees since they are a linear pair

D = 127 degrees, so

C + 127 = 180

to get the C, you need to subtract 180 degrees bt 127 degrees

180 - 127 = C


Jordyn made some bracelets and sold them at a craft fair for $8 each. She paid $50 in
materials and fees. Jordyn's profit after the fair was $310. She wants to know how
many bracelets she sold.

Answers

Answer:

38

Step-by-step explanation:

because when u divide it

38 is the right answer

What is the value of
2021
−
2223
+
2425
?
?

Answers

Answer:

2223

Step-by-step explanation:

We need to find the value of 2021-2223+2425.

Firstly subtract 2223 from 2021.

2021-2223 = -202

Now add -202 and 2425. So,

2425 +(-202) = 2223

So, the value of 2021-2223+2425 is 2223. Hence, this is the required solution.

HELP ASAP
The number of minutes played and the number of field goal attempts for
certain players of the Indiana Pacers for the 1999–2000 season is shown below.
Player
Player
Best
Rose
Miller
Smits
Croshere
Davis
Minutes Field Goal
Played Attempts
2978 1196
2987 1041
1852
890
1885
653
Jackson
Perkins
Minutes Field Goal
Played Attempts
1691 561
2190 570
1620-- 441
582 187
634
108
Mullin
Mckey
2127
602
17. Make a scatter plot of the data.
18. Does the scatter plot show any relationship? If so, is it positive or
negative? Explain your reasoning.
19. Suppose a player played 2500 minutes. Predict the number of field goal
attempts for that player.

Answers

Answer:

See below and the attachment

Step-by-step explanation:

Refer to attached graph.

It includes the points and a best fit line produced by a graphing calculator.

17. The scatter plot is attached18. There is a positive slope. Number of field goal attempts increase as minutes played increase.19. The point is plotted: 2500 minutes gives about 880 field goal attempts.

Answer:

It includes the points and a best fit line produced by a graphing calculator.

17. The scatter plot is attached

18. There is a positive slope. Number of field goal attempts increase as minutes played increase.

19. The point is plotted: 2500 minutes gives about 880 field goal attempts.

Step-by-step explanation:

The Bridal Shop bought a dress from a supplier for $105 wholesale and applied a 65% markup to the price.
If a 7.5% sales tax were added after a 20% discount was used, what would be the total cost to purchase the dress?
A
$146.20

B
$149.00

C
$158.48

D
$160.17

Answers

Answer:

B $149.00

Step-by-step explanation:

105 * 1.65 =   173.25      (100%+ 65%)    Price with the markup            

173.25 *0.80  138.60  (Price after 20% discount .The price will be the 80%)    

138.60 * 1.075 =   148.995  (price with 7.5  sales tax.)  

Anne can swim 4 laps in 3 minutes. How many laps can she swim in 27 minutes.

Answers

Answer:

( 27 x 4 ) /3 = 36  laps

Step-by-step explanation:

Anne can swim 36 laps in 27 minutes. You would set up a proportion 4/3 = ?/27 and figure out what multiplied b

Ben wants to buy a guitar. The regular price of the guitar is $329.99. The sale price of the guitar is 25% off of the regular price. What is the sale price of the guitar?

Answers

$247.49 because 329.99 minus 25 percent gives that amount

−9.3=d−3.4

Help

Please
Mr

Answers

Answer:

d = -5.9

Step-by-step explanation:

Elizabeth changed her time for the mile walk from 30 minutes to 24 minutes. What was the percent of change?​

Answers

-20%

Basically, we are trying to find the change from 30 to 24 in terms of percent. We do this in three steps:

1) Find the difference between 30 and 24 as a number.

2) Divide the result from Step 1 by the starting number 30.

3) Multiply the result from Step 2 by 100 to get it in terms of percent.

The three steps above can be made into a formula. Thus, to find the percent change from 30 to 24, we use this formula:

((Y-X)/X)*100 = Percent Change

X is the starting number 30, and Y is the ending number 24 that it changed to. When we enter these numbers into the formula, we get:

((24-30)/30)*100 = -20.00%

Thus, the answer to the question "What is the Percent Change from 30 to 24?" is:

-20.00%

Question 2
How many solutions is x=0?
Zero
Infinitely many
One

Answers

Answer:

x= 0 has one solution

Step-by-step explanation:

Here, we want to get the number of solution

Looking at the relation, we can see that what we have is a linear relation

mathematically, a linear relation has a single solution

Thus, x = 0 has one solution

standard form

-3 time 2 time A +5(-7b)+(12 time c time 4)

Answers

Answer:

-6A - 35b + 48c

hope it's helpful ❤❤❤❤❤❤❤

:)

THANK YOU.

Ramon walks at a constant rate of 6mi/hr. Write an equation using the variables m and h to represent how many miles he would walk in any given hour.​

Answers

Answer:

Key for H and M. ( H-Hour)(M-Mile)

6m= h divided by 10=6

Step-by-step explanation:

6 times 10= 60 minutes. So 1 mile every 10 minutes. This was hard, but it clicked at the end. Good luck, and remember to sub out the divided and multiply by with the signs!

Which expression is equivalent to 0?
(a)(-a)
a +(-a)
a/-a
a - (-a)

Answers

Answer:

a - a or (a +(-a))

Step-by-step explanation:

A negative plus a positive is always zero if they have the same variable.

a+(-a) equals zero because they cancel each other out .

(a)(-a) equals -a
a/-a equals -a
and
a-(-a) equals positive a

Theodore and Sarah have a small business selling custom-made T-shirts. They currently sell 205 shirts per month and charge $15 per T-shirt. Sarah thinks they can increase their revenue by increasing their selling price, but Theodore knows from experience that each $1 increase in price will decrease the number of T-shirts they sell by 9 shirts per month. Find an expression for the total monthly revenue Theodore and Sarah's business can generate if they change the selling price of their T-shirts. Let x represent the number of $1 increases in the price of the T-shirts.

Answers

Answer:

(205-9x) times15

Step-by-step explanation:

The expression the total monthly revenue of Theodore and Sarah's business is  (205-9x)15.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Theodore and Sarah have a small business selling custom-made T-shirts. They currently sell 205 shirts per month and charge $15 per T-shirt. Sarah thinks they can increase their revenue by increasing their selling price, but Theodore knows from experience that each $1 increase in price will decrease the number of T-shirts they sell by 9 shirts per month.

The expression will be written as,

E = (205-9x)15.

Therefore, the expression the total monthly revenue of Theodore and Sarah's business is  (205-9x)15.

To know more about an expression follow

https://brainly.com/question/25968875

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Which of the following is the least

Answers

Answer:

-512 is the least number

-512 is the least


right answer

help what is the value of b?​

Answers

Answer:

44 °

Step-by-step explanation:

180- (84+52) = 44

Answer:

44 degrees

Step-by-step explanation:

A triangle has a total of 180 degrees.

First, add the 2 sides that are given to you:

84 + 52 = 136 degrees

Subtract 136 from 180 to find the remaining angle:

180 - 136 = 44 degrees

b = 44 degrees

Select the fraction that is equivalent to one half.

HOW DO I DO THIS PLZ HELP

Answers

Answer:

1/2 one half

Step-by-step explanation:

Answer:

Multiply both the numerator and the denominator by the same whole number.

For example;

If you multiply 1/2 by 2/2, this will equal 2/4. You can simplify 2/4 to 1/2.

So to find 1/2 to be equivalent to another fraction, multiply both the numerator and the denominator by the same number to find a fraction that equals 1/2.

A drawing has a scale of 1:40
On the drawing, a kitchen is a rectangle measuring 14 cm by 22 cm
A bedroom has an actual area of 500 000 cm?
How much smaller, in cm2, is the kitchen than the bedroom?

Answers

Area of kitchen = (14*40)(22*40) = 448,000 sq cm

500,000 - 448,000 = 52,000
The kitchen is 52,000 square centimeters smaller than the bedroom.

7. Which of the following is a true statement
about the angles in the figure below?

Answers

Answer:

d

Step-by-step explanation:

Answer:D

Step-by-step explanation:


Which equation is nonlinear?
o 2x - y = 9
Oy = x2 + 3
Oy = 2x - 3
OX= y

Answers

X=y is not a linear equation

What is the decimal equivalent of four and two fifths? omg pls help me!!!!!!!!!!!

Answers

Answer: The answer is 0.8

Step-by-step explanation:

We know that 2 is simply 2.0 and 45 is 4×(15) , which is simply 4×0.2=0.8

Answer:

4.4

Step-by-step explanation:

Please show how you got answer

Answers

Firstly u need to make equation in formula of y=ax+b
Here we have -x+y=16
When you take x to other side you must change sign of it
Then y=16+x
Y=x+16
I hope u learn

IF YOU DECIDE TO HELP ILY!!

Answers

Answer:

n equals 4

Step-by-step explanation:

3(2x + 1) = 6(5x - 4)

Answers

Answer:

X= 9 over 8 or 9/8

Step-by-step explanation:

hopefully this helps

Answer:

9/8 or 1.125 or 1 1/8

Step-by-step explanation:

If the car spends no time going 35 miles per hour, about how long would the trip take? Round the answer to the nearest hundredth. and explain

Answers

What’s the car ride hour

73000.008 = 7.3 10° + 8 x 10
Work out the powers of c and d

Answers

Answer:

x=2.488966,−2.488966

Step-by-step explanation:

..Kyle purchased a plant that was 2 inches tall. The function h(t) = 2 + 0.75t models the height of the plant t months after Kyle purchased the plant. What is the meaning of h(11)?
a. The plant is 12 inches tall after 11 months.

b. The plants is 11 inches tall after 12 months.

c. The plant is 11 inches tall after 10.25 months

d. The plant is 10.25 inches tall after 11 months.​

Answers

Answer:

a

Step-by-step explanation:

10.) Combine the like terms in the following expression: 8 + 3x + x + 5 + 2x *

Answers

Answer:

6x+13

Step-by-step explanation:

I hope this is right.

I’m pretty sure it’s 6x+13
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