Mary spent $45 at the mall. She bought lunch for $9 . She bought 3 shirts at x dollars
each. Which of the following equations could be used to find x ?

Answers

Answer 1

Answer:

3x + 9 = 45

Step-by-step explanation:

3 shirts at x dollars each cost 3x

lunch costs 9

altogether she spent 3x + 9

she spent 45

3x + 9 = 45


Related Questions

are a trapezoid and a parallelogram sometimes, always, or never similar?

Answers

No, a trapezoid is not a parallelogram. They both are quadrilaterals which have 4 sides each. Parallelogram has opposite sides equal and parallel, but trapezoid has one set of sides parallel but not equal. Parallelogram has opposite angles equal.

11. The population of 1,000 unicorns is decreasing by 8% every year.
What is the independent and dependent variables of this situation?
A. Independent - Population; Dependent - years
B. Independent - Years; Dependent - population

Answers

A is the answer because year is X AND population is Y because for the population to go down or up time has to pass. Population is dependent on years.
A is the correct answer

Scores on a national math test are Normally distributed, with a mean score of 490 and a standard deviation of 50. Which test score represents the top 20%, rounded to the nearest whole number?

Find the z-table here.

426
448
532
554

Answers

Answer:

532

Step-by-step explanation:

The score that represents the top 20% = A score = 80%

Z score for 80% percentile = 0.842

We solve using the z score formula

z = (x-μ)/σ, where

x is the raw score = ??

μ is the population mean = 490

and σ is the population standard deviation = 50

Hence:

0.842 = x - 490/50

Cross Multiply

0.842 × 50 = x - 490

x = 0.842 × 50 + 490

x = 42.1 + 490

x = 532.1

Approximately = 532

Therefore, the test score = 532

Answer:

532

Step-by-step explanation:

edg 2020-2021

what is 7 as a mixed number in the simplest form?

Answers

Answer:

7 is the simplest form. A mixed number needs a fraction

Step-by-step explanation:

Answer:

7/1

7

Step-by-step explanation:

Simplify.
(3-2i)(-5)

Answers

Answer:

2i-15

......................

20 POINTS Please Will MARK AS A BRAINLEST

Answers

Answer:

tanA = [tex]\frac{12}{5}[/tex]

Step-by-step explanation:

tanA = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{24}{10}[/tex] = [tex]\frac{12}{5}[/tex]

Answer:

67.38

Step-by-step explanation:

Tan =opposite/adjacent

=24/10

=2.4

Tan 2.4=67.38, when used on a calculator, i.e,shift tan 2.4

Bonnie's doctor recommended that she drink 2cups of milk per day. If she buys 3 quarts of milk,will it be enough milk to last 1 week?

Answers

Answer:

She does not have enough milk to last for 1 week

Step-by-step explanation:

From the question, we are told that:

Bonnie's doctor recommended that she drink 2cups of milk per day.

Step 1

The number of days in a week is 7 days

Hence

1 day = 2 cups of milk

7 days = x

Cross Multiply

x = 7 × 2 cups of milk

= 14 cups of milk.

Step 2

If she buys 3 quarts of milk,will it be enough milk to last 1 week?

We have the conversion rate as:

1 quart = 4 cups

Therefore,

1 quart = 4 cups

3 quarts = x cups

Cross Multiply

x cups = 3 quarts × 4 cups/1 quart

x cups = 12 cups of milk

This means she bought 12 cups of milk.

Therefore, from the above calculation, she does not have enough milk to last for 1 week because due to her doctor's recommendation, she need 14 cups of milk for the week but she only bought 12 cups of milk

Answer:

70

Step-by-step explanation:

68+2

Help with graph pleaseeee​

Answers

Graph a= undefined /graph b =-1/ graph c= 1/3 graph d = 0

I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

IF YOU SEND ONE MORE LINK AGAIN I WILL REPORT YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

h(x) =-(x+5)^3

Step-by-step explanation:

5k + 30 = -20 - 5k
Solve for K.

Answers

5k + 30 = -20 - 5k

5k + 5k = -20 - 30

10k = -50 / : 10

k = -5

Answer:

-5 = k

Step-by-step explanation:

5k + 30 = -20 - 5k

5k + 30 + 20 = 5k + 50

-20 - 5k + 20 = -5k

5k + 50 = -5k

5k + 50 - 5k = 50

-5k - 5k = -10k

50 = -10k

50 / -10 = -5

-10k / -10 = k

-5 = k

PLEASE ANSWER HONESTLY (PLEASE BE HELPFULL I HAVE BEEN STUCK ON THIS PROBLEM) WILL MARK BRANIEST IF CORRECT. (no links my computer is slow and no ctrl c ctrol v if possible

Answers

Answer:

a^2+b^2=c^2 look below

Step-by-step explanation:

Count the squares so

3^2+4^2=5^2

3*3=9

4*4=16

5*5=25

9+16=25 and it does check out

this should help if u need more explanation ill be more then happy to explain to you

With equation does not represent a proportional relationship
A y=5x
B y= 1 = 1/2 x
C y= x + 5
D 2y =5x

Answers

Answer:

x (weeks). 0. 1. 2. 3. 4 y (savings in dollars). 25. 30. 35. 40. 45. The relationship is linear but ... 5. 6 slope = unit rate = 2 words/min slope = unit rate = 0.4 ft/s y = 1_. 2 x. Unit 2. 182 ... Write an equation that represents the proportional relationship shown in ... does not charge a fixed rate but charges $1.00 per mile.

Step-by-step explanation

slope: 2 y-intercept_-_Equation: y=2x-1 4.slope: 13 y-intercept_l Equatio ... Mo Parallel to y= -5x+8 __y=-5x+1) (same slope) m= -5. No slope ... (no y value, only x-value) denominator 0 ... The amount y (in cups) of flour is proportional to the number x of eggs in a recipe. ... Write an equation that represents the situation.

Please, please, please help?
Simplify: 12(x^-4)^2 / 4(x^-2)^-3

Answers

Answer:

3/x^14

Step-by-step explanation:

Answer:

3x⁻¹⁴ or 3/x¹⁴

Step-by-step explanation:

12(x⁻⁴)² / 4(x⁻²)⁻³ =12/4 × x⁻⁸/x⁶ =3x⁻⁸⁻⁶ =3x⁻¹⁴ or 3/x¹⁴

HELP I NEED IT NOW THANKS

Answers

X represents the price
Y represents the percentage of the price
Hope this helps

Please help!!!! Will Brainlist 30 points!!!

Answers

Answer:

135 degrees

Step-by-step explanation:

Answer:

It's C) 135

Step-by-step explanation:

You do 180-45 to get your answer. With questions like these or ones ab triangles the whole would be 180 and you add or subtract to get your answers

Solve for each question.

Answers

Answer:

PN = 30

PNM = 90 degrees

PNL = 90 degrees

hope i helped you

Step-by-step explanation:

What’s the missing term ?

Answers

if the pattern continues, I believe it would be 2x.

Angle measures and segment lengths - find x do not round

Answers

Answer: 12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

ASAP NEED HELP DUE TMR

Answers

The mean is 58 the median is 15.5

Write 3-5 sentences about the process of GCF Factoring Method

Answers

Answer:

Factoring out the GCF is the first step in many factoring problems. Step 1: Determine the greatest common factor of the given terms. The greatest common factor or GCF is the largest factor that all terms have in common. Step 2: Factor out (or divide out) the greatest common factor from each term.

Step-by-step explanation:

whats 1x500 plsssssssssssssssssss

Answers

Its 500

because anything that is getting multiplied by one is the same number.

Answer:

500

Step-by-step explanation:

1 x whatever number is always gonna be the number you multiply.

what is the area of the figure

Answers

Answer:

24 cm

Step-by-step explanation:

4x5=20 for the rectangle and 2x2=4for the square at the right
then add them up gives you 24

which is a multiple of 3​

Answers

Answer: you forgot a picture but here are some

Step-by-step explanation:

6, 9, 12, 15 ect

Translate to word form:
x + 29

1. the total of x and 29
2. x times 29
3. 29 less than x

Answers

1. The total of x and 29.

This is because we see addition going on, so x+29 is the total of something


Hope this helps :)

Find x. Round your answer to the nearest tenth of a degree

Answers

Answer:

tan^-1(36/24)= 56.3° the answer to the question

can some one help me with this

Answers

Answer:

Actually i don't know what is the wanted but now

i will find the total of the teenagers.

Step-by-step explanation:

[tex] \frac{4000}{45\%} = \frac{x}{100\%} \\ x = \frac{4000 \times 100}{45} \\ x = 8889 \: \: teenagers[/tex]

I hope that is useful for you :)

Answer:

this is tating the plant

how do you write 7 a mixed number in the simplest form

Answers

What does this even mean?

HELP PLZ!!!
A chord is a diameter.

-always
-sometimes
-never

Answers

Answer:

always hope this helps :)

Step-by-step explanation:

Step-by-step explanation:

sometimes would be your answer<3

The answer is sometimes, but this is only when the chord passes through the centermost point on the circle.

the length of a rectangle is 2 inches less than 3 times it width . The perimeter of the rectangle is 124 inch. WHat is the length of the rectangle

Answers

Step-by-step explanation:

let w = width

length = 3w-2

perimeter = 2*length + 2*width

perimeter = 2(3w-2) + 2w

perimeter = 6w - 4 + 2w

perimeter = 8w - 4

perimeter = 124 inch

8w - 4 = 124inch

+4 to each side

8w = 128inch

divide each side by 8

w = 16

length = 3w-2

           = 3(16) - 2

length = 46 inch

Patti starts out on day 1 with $0.01 and doubles her money each day to create a sequence of $0.01, $0.02, $0.04, $0.08 and so on. How much money should she have on day 12 ?
A. $9.60
B. $10.24
C. $20.48
D. $40.96

Answers

Answer:

D.40.96

Step-by-step explanation:

1-.01×2=.02

2-.02×2=.04

3-.04×2=.08

4-.08×2=.16

5-.16×2=.32

6-.32×2=.64

7-.64×2=1.28

8-1.28×2=2.56

9-2.56×2=5.12

10-5.12×2=10.24

11-10.24×2=20.48

12-20.48×2=40.96

Other Questions
Plz helpppppp!!!!!!!! A mining company is evaluating when to open a gold mine. The mine has 100,000 ounces of gold left that can be mined and mining operations will produce 10,000 ounces per year. The price of gold from the mine will be guaranteed for the remaining life of the mine through the gold futures contracts. If the mine is opened today, each ounce of gold will generate an after-tax cash flow (= total or net cash flow) of $1,300 per ounce. If the company waits one year, there is a 70 percent probability that the contract price will generate an after-tax cash flow of $1,550 per ounce and a 30 percent probability that the after-tax cash flow will be $1,200 per ounce. The required return on the gold mine is 15 percent and it will cost $30,000,000 to open the mine regardless of whether the mine is open today or in one year. Compute the value of the option to wait today. Frank has a mass of 30 kg. He is sitting on a swing which is 2.3 m long. His dad pulls him up to a height of 1.2 m above his lowest point and releases him. b. What is his velocity at the bottom of his path? Identify three emerging trends in the eating patterns of Americans What do you mean by the word ,' Elegies' ? for brainiest:):):):):):):):):) Confusing to me please help...... A baseball player throws a ball from second base to home plate. How far does the player throw the ball? Include a diagram showing how you got your answer. Decide how many decimal points of accuracy are reasonable. Explain your reasoning. Is n = 3 a solution to the inequality below?n Simplify -3(y+4)+4yPlease ANSWER FAST!!!!! What is the interquartile range for this data set? 9, 17, 3, 26, 9, 15, 7, 20, 5, 12, 22 Read these two paragraphs from a story.Event 1:Hector followed the man in the black trench coat down the alley. Hector ducked behind a trashcan as the man looked from side to side before knocking a pattern on a door. The door opened and the man spoke quickly in a language Hector did not understand. He handed a paper through the door. Just then, Hector heard someone running and the door slammed shut as a woman appeared at the entrance to the alley. Stop! she yelled at the man in the trench coat, but the man turned and leapt up the wall of the building, somehow scaling it easily, and vanishing onto the roof.Event 2:The man in the trench coat ducked around the tall shelf of books in the college library. Hector crept after him. He peeked around the end of the shelf as the man took a book and read something inside. Then the man vanished around the far end of the aisle. Hector ran down to pull out the same book. Written in ink on the first page was a message in a language Hector didnt recognize. As he watched, the letters slowly faded from sight.What is similar about these two events? A. Hector sees the man read something in a book. B. A female spy is following the man in the trench coat. C. The man knows a language that Hector does not know. D. The man and Hector are in the same building in both events. Ivan had 1,500 flyers printed to announce the opening of his new coffee shop. He paid $0.06 per flyer he's paying his friends $0.25 cents per flyer to deliver them. How much will Ivan pay to have all the flyers printed and delivery Someone help me define these pls Rewrite using direct object pronouns Please help me if you can. Please also write how you got the answer thank you. Write the expression in standard form.(4x - 3 + 2y) - (-4y + 2)* you get 75 point for answering 15 question you get 70 points for answering 14 questions is this fair What percent of 400 is 190? What is the image of ( 2 , 8 ) after a reflection over the x-axis?