The total cost of 4 starfish was $7.20. Write and solve an equation to find how much one starfish cost.

Answers

Answer 1

Answer:

$1.80

Step-by-step explanation:

4x = 7.20

x = 1.80


Related Questions

Evaluate 150 - ( 2 +x)^ 3 when x - 2

Answers

Answer:

it's 86

Step-by-step explanation:

150-(2+x)^3=150-(2+2)^3

    =150-4^3

    =150-64

    =86

The value of the expression 150 - (2 + x)³, when x = 2 is, 86.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression 150 - (2 + x)³, when x = 2.

This can be obtained by replacing x = 2 in the expression.

Therefore, 150 - (2 + x)³.

= 150 - (2 + 2)³.

= 150 - 4³.

= 150 - 64.

= 86.

learn more about numerical expressions here :

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Can someone please help me?

Answers

Answer:

#25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

Answer: #25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:


This diagram shows a right cylinder. Recall that the area
of a circle Is A = 7r. What is the formula for the
volume of the cylinder?
o V = arh
o
V=
arh
2
O V = 2rh
h
V = 2h

Answers

Picture would be very helpful.

According to Greg, the perfect cherry pies have a ratio of 240 cherries to 3 pies. How many cherries does Greg need to make 9 perfect cherry pies?

Answers

Answer:

720 cherries

Step-by-step explanation:

3 pies need 240 cherries so the equation would be:

3c = 240

so, c = 80

But, he needs to make 9 "perfect" pies so you make the equation:

9c = 80*9

9c = 720

So Greg needs 720 cherries to make 9 perfect cherry pies.

Which table represents the statement "A computer repairman makes $25 per hour"?

Answers

Answer:

Table number 3

Step-by-step explanation:

25+25=50

50+25=75

Answer:

C

Step-by-step explanation:

For every 1 hour(h) 25 dollars(d) gets added. You can multiply 25 with however many hours you need to get the answer.

example: 4 hours would be 100 because 25×4=100

he dot plot shows a random sample of the number of fish caught and released by 30 participants during a two-day fishing derby.

Alternative text

Use each data set to make an inference about the number of fish caught each day.
A.


On average, most participants caught and released 5 or more fish.
B.


More participants caught 6 fish than any other number.
C.


The same participants who caught and released 1 fish the first day caught and released 1 fish the second day.
D.


On average, participants caught and released more fish on Day 2.

Answers

Answer:

B

Step-by-step explanation:

More participants caught 6 fish than any other number.

We have given that,

The dot plot shows a random sample of the number of fish caught and released by 30 participants during a two-day fishing derby.

What is the random sample?

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.

More participants caught 6 fish than any other number.

To learn more about the random sample visit:

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anyone know? its due tonight​

Answers

Answer:

12 cm

Step-by-step explanation:

Well first we can cut the triangle in half and use the Pythagorean theorm

a^2+b^2=c^2

In this case we are going to be doing c^2-a^2=b^2

10^2-8^2=b^2

(10*10)-(8*8)=b^2

100-64=b^2

36=b^2

Now we just square root 36 (what number times itself is 36)

[tex]\sqrt{36}[/tex]

b=6

Since half of the one side equals 6 (DC) then the length of AC is 12!

Answer:

hey mate here is your answer...

Step-by-step explanation:

by using Pythagoras theorem...

BC² = BD² + DC²10² = 8² + DC²DC² = 100 - 64DC² = 36

DC = 6DC is the half of AC.Therefore AC = 12 centimetres.

hope it helps you ❣️

Help me please I’m stuck

Answers

Option 2: Altitude
I included a picture of what an altitude looks like.

An employee at a store makes $6 an hour. If she has made $237.38 in a week, how
many hours, did she work that week? Write an equation showing how to solve for how
many hours she worked using "h"as the variable.

Answers

Answer:40 hours

Step-by-step explanation:divide 237.36 by 6 and you will get 39.5633

so basically what you're going to do is round it up and your answer will be 40

help me please
bddbdbbdbd​

Answers

35 cats (70%) 15 dogs (30%)

50 x 70% = 35

50 - 35 = 15 (remaining 30%)

1. Find the amount of cats.
2. There are 50 dogs and cats, 30% are dogs.
3. multiplication
4. Formula shown above

Hope this helps!

Please help due today

Answers

Answer:

x = 5

Step-by-step explanation:

The diagonals of a parallelogram bisects each other, which means that each diagonal is splitter into two equal parts.

Therefore:

x - 2 = 2x - 7

Collect like terms

x - 2x = 2 - 7

-x = -5

Divide both sides by -1

x = 5

If a pizza pie had
a diameter of 12
inches, what
would be its
circumference?

Answers

Answer:

37.69

Step-by-step explanation:

Answer:r=7r =9 r=10

Step-by-step explanation:

Help ASAP pls I will give 10 points

Answers

Answer:

it is thr 3rd answer hope it help you

Brendan's mom bought him a new bes frame and wants to figure put the area.If Brendan's new bed frame is 5 1/4 feet long and 4 feet wide,What is the area of the bed frame?

Answers

The answer is 21 ft.

Hope this helps.

A child is standing across the street from his apartment. His mother is on their balcony. The angle of elevation between the child's eyes and his mother's eyes is 28°. If the distance between their eyes is 35 ft, how far is the child standing from his apartment building? Round to the nearest foot.

Answers

Hwuaijshwjshjwjwjwhjwjwbbwbjw

What is the value of the expression (2)6 ?​

Answers

Answer:

6x2 =12

Step-by-step explanation: when ever u see that just multiply

Answer and explain please ill mark brainliest!!!!!!!!

Answers

Answer:

Yes, Elias got his food before reaching the potluck.

Step-by-step explanation:

Elias left home at 7:00 one morning, determined to make the ten-mile trip to Leaders on a bicycle. Soon thereafter, Elias' parent noticed he had forgotten his potluck dish on the kitchen table, got into the family car, and tried to catch up with the forgetful child. Elias had a fifteen-minute head start, and was pedaling at 12 mph, while the parent pursued at 30 mph. Was Elias reunited with his potluck food before reaching Leaders that day? If so, where? If not, at what time was the food delivered?

Let's set x as the time after the parent leaves as x (time after the first 15-minute headstart)

When the two meet, it means that the distance is equal. Remember, distance = time * speed.

Using this, we know that Elias had a 15-minute headstart at 12 mph, which means that he had 0.25 of an hour. Thus, Elias had a 0.25 * 12 mile headstart.

We can write this equation for the distance Elias traveled.

0.25 * 12 + 12 * x

And this equation for the distance his parent traveled.

30 * x

These equations need to be equal so that the two meet.

0.25 * 12 + 12 * x = 30 * x

Simplify.

3 + 12x = 30x

Subtract 12x from both sides.

3 = 18x

Divide both sides by 18.

x = 1/6

So, it took 1/6 of an hour, which is 10 minutes, for the parent and Elias to meet.

If Elias were to get the food before he reached the potluck, the distance he traveled (0.25 * 12 + 12 * x) needs to be less than 12.

Plug 1/6 in for x.

0.25 * 12 + 12 * 1/6 =

3 + 2 = 5

Elias traveled 5 miles before his parent met him.

So, Elias did get his food before reaching Leaders.

Just in case, let's double-check this answer.

Using the distance = speed * time formula, we know that time = distance/speed. Elias's parent had to travel 5 miles at 30 mph, so it would have taken 1/6 of an hour to drive 5 miles.

Elias traveled at 12 mph for 1/6 + 1/4 of an hour, so he traveled:

(1/6 + 1/4) * 12 =

(4/24 + 6/24) * 12 =

10/24 * 12 =

120/24 = 5 miles

Thus, the previous answer is right.

I hope this helps! Feel free to ask any questions!

Line g has a slope of
Line ris parallel to line q. What is the slope of line r?
Simplify your answer and write it as a proper fraction, improper fraction, or integer? Please I need help!!

Answers

Answer:

45

Step-by-step explanation:

45

PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: 10x5

(10 blocks wide, 5 blocks long) or (5 blocks wide, 10 blocks long)

Step-by-step explanation:

3 blocks = 18 meters, so

1 block = 6 meters

60meters/ 6meters= 10 blocks

30 meters/ 6 meters = 5 blocks

Answer: The box should be 3 x 6

8. Which expression stands for "32 more than a number d"?
A 32 xd
B 32 - d
C 32 +d
D 32 = d.

Answers

your answer will be C because we have to add 32 to a random number d which is 32+d :)

Answer:

c

Step-by-step explanation:

home security service. This private home security service guarantees to either dispatch one of their own five guards immediately if one of their customers sends in an alarm or, in the case that all five guards are responding to other calls, direct the alarm to the local police. The company receives 12 calls per hour, evenly distributed over the course of the day. The local police charges the home security company $500 for every call that the police responds to. It takes a guard, on average, 90 minutes to respond to an alarm. a. What fraction of the time are incoming alarms directed to the police? b. How much does the home security company have to pay the local police every month?

Answers

Answer:

a.

The fraction of the time is incoming alarms directed to the police is 74.02%

b.

The home security company has to pay $3,197,665 the local police every month.

Step-by-step explanation:

As per the given data

Numbers of guards = 5 guards

Calls received per hour = 12 calls per hour

Activity time = 90 minutes

First, calculate the inter-arrival time

Inter-arrival time = Minutes in an hour / Numbers of calls received per hour = 60 minutes per hour / 12 calls per hour = 5 minutes

a.

First, calculate the ratio of activity time to inter-arrival time

Ratio = Activity time / Inter-arrival time = 90 minutes / 5 minutses = 18

Now calculate the probability of all 5 servers are busy using ratio of activity time to inter-arrival time

Probability = [tex]P_{Servers}[/tex] ( ratio )

Probability = [tex]P_{5}[/tex] ( 18 )

Probability = 0.7402

Probability = 74.02%

Hence the probability of incoming calls directed to the police is 74.02%

b.

First, calculate the loss of customers

Loss of customers = Probability x ( 1 / Servers )

Loss of customers = 74.02% x ( 1 / 5 )

Loss of customers = 0.7402 x 0.20

Loss of customers = 0.14804 per minute

Loss of customers = 0.14804 per minute x 24 x 60 x 30 = 6,395.33 calls per month

Now calculate the total loss

Total loss =  6,395.33 calls x $500

Total loss = $3,197,665

A cook needs 12 pounds of flour. He wants to spend the least amount of money. If a 2-pound bag costs $1.59 and a 5-pound bag costs $2.89, how many bags of each type of flour should he buy? What will be the total cost?

Answers

He should get 2 5-pound bags and 1 2-pound bag, it will cost him in total 7.37 dollars

Find the coordinates of the midpoint of each segment with the given endpoints.
S(13,7) and T(-2, -7)

Answers

The midpoint of those two would be (5.5, 0).

Answer:

This would be (5.5,0)

Step-by-step explanation:

Hope it helped!

O is:
rational
irrational

Answers

There’s no picture, please post one

Please help I want to make sure that I’m doing this right

Answers

Exterior angle of a triangle = sum of two opposite angles of the exterior angle
138 = x + 55
138 -55 = x
x = 83

OKAY IM SORRY FOR ALL THESE- BUT I TRULY NEED HELP! THESE ARE CONFUSING! IF YOU KNOW WHAT THE ANSWER IS PLEASE HELP ME OUT!

Answers

Answer:

D

Step-by-step explanation:

A. Does not have to have symmetry

B. Opposite angles are congruent.

C. Opposite sides are parallel.

D. All sides are NOT congruent.

Olivia, the food stand manager, spends $210 per week on vegetable sandwich ingredients. She wants to earn $1870 per week.
Write an equation that can be used to determine x, the number of vegetable sandwiches Olivia needs to sell in order to earn $1870 per week.

Answers

Answer:

187

Step-by-step explanation:

1870/210=187

Also / means divide

Al abrir su alcancía Beatriz encontró que entre monedas de 5, 10 y 25 centavos completaba $ 9.50. Encontró igualmente que el número de monedas de 10 centavos era el triple de las de 25 centavos y que las de 5 centavos era el doble de las de 10 centavos. ¿Cuántas monedas de cada denominación había en la alcancía?}

Answers

Answer:

67 monedas de 5, 34 de 10 y 11 de 25.

Step-by-step explanation:

Representemos el primer enunciado de manera algebraica:

[tex]5x+10y+25z =950[/tex]  (1)

Donde:

x es el numero de monedas de 5y es el numero de monedas de 10 z es el numero de monedas de 25

Ahora, el número de monedas de 10 centavos era el triple de las de 25 centavos y que las de 5 centavos era el doble de las de 10 centavos, se puede representar como:

[tex]y=3z[/tex]  (2)              

[tex]x=2y[/tex]  (3)    

     

Combinado las eacuaciones (1), (2) y (3) tenemos:

[tex]5(2y)+10y+25(\frac{y}{3}) =950[/tex]

[tex]10y+10y+\frac{25}{3}y =950[/tex]

[tex]\frac{85}{3}y =950[/tex]  

[tex]y =34[/tex]

Por lo tanto el valor de x y z seran:

[tex]x=2(34)[/tex]          

[tex]x=68[/tex]          

[tex]z=11[/tex]    

Si ponemos cada valor en la equacion (1), tenemos:

[tex]5(68)+10(34)+25(11) =955[/tex]

Como el resultado da 955 hay un excedente de 5 pesos, asi que finalmente tendremos.

x = 67

y = 34

z = 11  

Espero te haya serrvido!

10 If each equation below is solved for x, for which equation is x = 8 the solution?
Choose all that apply.
A 3x = 24
B 7x = 56
C 9x = 17
D 13 - X= 21
EX - 15 = -7

Answers

I know it’s A, B, and E
For A you divide 24 by 3
For B you divide 56 by 7
And those both give 8
For C you divide 17 by 9 which isn’t 8.
For D I think you’d subtract 13 from 21 which is 8 but then the equation is -x = 8 so to change x i think then it’d be x = -8
so I don’t think D is right but i’m not 100% sure

What is the missing value? (-4, 6) and (p, 7) = -1/2

Answers

Answer: perhaps a rectangle with length L=6

if so , then P = 12 + 2w ---> (P-12)/2 = 2

and area A = 6w ---> w = A/6

IF i get it wrong im swwy ❤️✨

Step-by-step explanation:

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Jessica paid $23,000 for her car. The value of the car depreciates at a rate of 15% each year. Which function represents the value of her car each year? A. f(x)=23,000(0.15)x B. f(x)=23,000(15)x C. f(x)=23,000(0.85)x D. f(x)=23,000(1.15)x What are three methods scientists use to study past climate conditions?PLEASE HELP ME GDSJFD Recently, it was discovered that rare earth elements can be used to repel what type of animal? How do they do this? Determine the amount or number of something mathematically (17) The solution to the LP Relaxation of a maximization integer linear program provides a(n) a. upper bound for the value of the objective function. b. lower bound for the value of the objective function. c. upper bound for the value of the decision variables. d. lower bound for the value of the decision variables. 2p(7p+7) please answer Adding Calculator Write a program that simulates an adding machine. Input to the program will be integers, submitted one per line. Input should be handled as follows: a nonzero value should be added into a subtotal; a zero value should cause the subtotal to be printed and reset to zero; two consecutive zeroes should cause the total (not subtotal) of all the values input to be printed and the program to be terminated. Heres an example of how the program should work. However, it is only an example. Your program should work for any test case. Input is in red and output is in blue. Your program does not need to display colors, they are show here for illustration only so that you can distinguish input and output. if i was the question would you be my anwser ?if i was the music would u be my dancer ? hii please help ill give brainliest A school club is comparing prices at two movie theaters. Theater 1 charges $7.50 for a movie ticket and $5.75 per item at the concession stand it would cost a total of $187.75 for their group. Theater 2 charges $22.50 a ticket and $7.50 per item for a total of $397.50. Using this information solve for how many tickets and how many concession items they plan to purchase how many movies do they plan to purchase? and how many snack bins did they get?? I will give you brainlist !!!!! HOW DO YOU DO THIS PLEASE EXPLAIN I need help on this and the first person who answer correctly gets a BRANLIST Answer this question PLZ Tienes una mascota? translate in spanish PLEASE HELP HURRY How did the owl get energy from the Sun (made their own energy, ate producers, ate consumers)? THIS IS FOR LIFE SCIENCE The Roswell sighting is said to have taken place in:A. 1937B.1947C.1979D.1942 Which of the following statements is true about mutations?A. It is a source of genetic variationB. Rates tend to be very high in most populations.C. It is generally lethalD.It affects only somatic cells what is a grabify link, and how can people avoid them? Look at the picture. Thank u! Max and Zoe collected 33 pieces of garbage from the beach. Zoe collected twice as many pieces of garbage as Max. How many pieces of garbage did Zoe collected?