Mathematics Middle School

Three friends are buying seashells at the gift shop on the beach. Melanie buys 2 seashells for $0.80. Rosi buys 5 seashells for $2.00. Carlos buys 4 seashells for $1.60. Use a graph to determine whether the number of seashells and the cost have a proportional relationship. If so, what is the constant of proportionality and what does it mean?

Answers

Answer 1

Answer:

17.08

Step-by-step explanation:

Related Questions

help me with this question

Answers

Answer:

I THINK C

Step-by-step explanation:

I THINK.

I believe the answer is C.

Two stores are selling the same pair of basketball shoes.
Store A sells the shoes for $120 and offers a 25% coupon.
Store B sells the shoes for $100.

Pls show your work as you find the cost at each store or at least explain.

Answers

Store A would be cheaper. I don’t have time to do the work right now but I will have it up in about an hour

Art by me but anyways.. there is also a picture of me from like.. 2 weeks ago ;-;

Answers

Answer:

Your art looks really good!

Step-by-step explanation:

The odometer in Mr. Washington's car does not work correctly. The odometer recorded 13.2 miles for
his last trip to the hardware store, but he knows the distance traveled is 15 miles. What is the percent
error? Use a calculator and the percent error formula to help find the answer. Show your steps.
HELP WITH EQUATION

Answers

I think the answer its 1.8 percent because if you subtract 15-13.2 comes out to be 1.8.

but l also think it could be 12 percent error.

The odometer recorded [tex]13.2[/tex] miles for his last trip to the hardware store, but he knows the distance traveled is [tex]15[/tex] miles then the percent error is [tex]12 \%[/tex] .

What is percentage ?

A percentage is a number or ratio that can be expressed as a fraction of 100. And is denoted using the percent sign, "[tex]\%[/tex]".

Percentage [tex]=\frac{Diffeerence \ in \ value}{Total \ value}[/tex]

We have,

Last trip to the hardware store [tex]=13.2[/tex] miles

Original trip to the hardware store [tex]=15[/tex] miles

So,

Using the above given formula;

Percentage error [tex]=\frac{Diffeerence \ in \ value}{Total \ value}*100[/tex]

[tex]=\frac{15-13.2}{15} *100[/tex]

[tex]=\frac{1.8}{15} *100[/tex]

[tex]=12 \%[/tex]

So, the Percentage error in the odometer is [tex]12 \%[/tex] which is find out using above given formula.

Hence, we can say that the odometer recorded [tex]13.2[/tex] miles for his last trip to the hardware store, but he knows the distance traveled is [tex]15[/tex] miles then the percent error is [tex]12 \%[/tex] .

To know more about Percentage click here

https://brainly.com/question/24159063

#SPJ2

Jordan went swimming for 78 hour in the morning and 56 hour in the afternoon.

What is the best estimate for the total time Jordan went swimming?

78hour is closest to ______ . 56hour is closest to _______ . Therefore, the best estimate for the total time Jordan went swimming is close to _______ .

A: 0 hours
B: 1/2 hours
C: 1 hour
D: 2 hours
E: 3 hours

Answers

Answer:

3 hours

Step-by-step explanation:

78 is closets to 80

56 is closest to 55

80+55

136

60×_=136

Answer:

Step-by-step explanation:

bc yes

A deposit of 100 dollars is represented as?

Answers

Answer:

represents the use of money as a ... savings deposits and small time deposits of less than $100,000.

Step-by-step explanation:

Answer:

+100 dollars

Step-by-step explanation:

You are depositing, or adding 100 dolors

A plus sign represents addition.

This means the answer is +100 dollars.

Hope this helps! I would love Brailiest if you do not mind!

NEED HELP RIGHT AWAY!!!
Point P on the coordinate grid below shows the location of a stage light. A second stage light is 6 units above P. The length of each square on the grid is 2 units. What are the coordinates of the location of the second stage light?

(8, −10)

(8, 2)

(14, 2)

(14, −10)

Answers

I think it’s (14,-10)

I think (14,-10) is the answer

Find the alternate interior angles in the figure shown given that m||n. Use pencil and paper. Describe a situation where you would use a transversal to cut a pair of parallel lines.

Which are the alternate interior angles. Select all that apply. 75 Points! (Will give Brainliest)

Answers

Answer:

i think its E and F

Step-by-step explanation:

im not sure

Answer:

i think its E and F as well

Step-by-step explanation:

please help due in 3 minutes will give brainliest.

Answers

Answer:

Step-by-step explanation:

25x

Plsssssss helppppppp!!!!!!!

I WILL AWARD BRAINLIEST!!!!!

Answers

Answer:

no sé inglés ayuda :( :( :( :( :( :( :(

Answer:

125.96 lb

Step-by-step explanation

step 1: add fractions

step 2: sum of fractions of 134

The length of a rectangle is shown below:

On a coordinate grid from negative 6 to positive 6 on the x-axis and on the y-axis, two points A and B are shown. The point A is on ordered pair 1, 3, and the point B is on ordered pair negative 3, 3. A straight line joins the points A and B.

If the area of the rectangle to be drawn is 20 square units, where should points C and D be located, if they lie vertically below the line that connects B and A, to make this rectangle? (5 points)

Group of answer choices

C(−3, −2), D(1, −2)

C(−3, −1), D(1, −1)

C(−3, −7), D(1, −7)

C(−3, −5), D(1, −5)

Answers

It would be 7 because if you multiple 6 you get 1

can someone help me? I will give you 8 points!

Answers

Answer:

For 7, it's around 20 minutes. For 6, it's around 30. For 8, it's around 15.

if a bus traveled 160 miles in 4 hours, what was the average speed in miles per hour

Answers

160/4 = 40 mph so that would be the answer simply divide

PLEASE HELP
A store marks its merchandise up 225% from the price it pays (Hint: whoa that is MORE than DOUBLED/twice).

The store buys a bag of chips for $1.20. How much will the store charge for the bag of chips?

Answers

The store will charge $3.90 for the bag of chips.
Reason for this is do 1.2*225%(or 2.25) in your calculator to get 2.7.
Then take the 2.7 then add it to the original purchase cost of 1.2 to give you a total of $3.90.

Use more than, less than, or equal to. –5/3 is ___ 0.27.

Answers

Answer:

less than

Step-by-step explanation:

its negative

Answer

the correct answer is -5/3 is < 0.27

Which of the following is a solution for the inequality 2x < 9?

Answers

Answer:

C) x = 4

Step-by-step explanation:

To solve this, divide 2 from both sides to get x < 4.5. This means that x has to be less than 4.5. "x" as 4 is the only correct answer because 4 is less than 4.5.

Hope it helps and is correct!

Answer:

x=4

Step-by-step explanation:

2*4.5=9

9<9 incorrect

2*6=12

12<9 incorrect

2*4=8

8<9 correct

pls i need help asap with this plss

Answers

Answer:

A.Length = 12cm

B.Perimeter = 100.97cm

Answer:

a. L = 12cm

b. P = 100.9cm

256 heartbeats in 4 minutes, wight the unit rate

Answers

It’d be 64 bpm i need 20 characters to say the answer fully

Answer:

64/1 or 64 heartbeats in 1 minute

Step-by-step explanation:

256 divided by 4 is 64.

I hope this helped!!

If line segment AB is 200%, what is the length of the line segment that is 100%?
_______inch(es)
(Type a whole number or a decimal)

Answers

1 inch because it is half Ab which is 2 inches

I think it is 1 in

identify the function shown in this paragraph

Answers

Answer:

i think its A

Step-by-step explanation:

Answer: A( The first one)

Step-by-step explanation:

Just graph it out put the slope over 1 (m)

Y=mx+b

m=slope

b= y intercept

First find the y intercept and mark the point (-1)

then use rise/run for slope (m)

The wholesale price for a pillow is $4.50 . A certain department store marks up the wholesale price by 80%. Find the price of the pillow in the department store.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

8.1

Step-by-step explanation:

1.8 times 4.50 is 8.1

What are some examples of recursion in real life?

Answers

Answer:

Step-by-step explanation:

Hint: recursion means the process of defining a problem in terms of itself...

a store is offering 20% discount on all items
the price of the hat after the discount is $18
what was the original price?

Answers

$21.60 I’m pretty sure

Answer: $22.50

Step-by-step explanation:

original price = p

20% discount = 0.8

sale price = 18

p x 0.8 = 18

p = 18/0.8 = 22.50

Elena had $50 in the bank on Monday. She had $56 on Tuesday. What was the percent of increase from Monday to Tuesday. If needed, use a tape diagram or double number line to help get the answer.

A. 12%

B. 8%

C. 14%

D. 10%

Answers

B. 8%? Is it right?im new here

Answer:

Step-by-step explanation:

the question is in the photo :)

Answers

The answer to this is A

The angles below form a linear pair. What is the measure of angle ABC?

Answers

Answer: 132 degrees

Explanation: a straight line has 180 degrees in it, take away the 48 leaves you with 132.

What percent of 180 is 30?

Answers

Answer:

16.67

Step-by-step explanation:

30: 180÷100 =

( 30÷00): 180 =

3000: 180 = 16.67

compare 11 1/2 feet and 4 yards is it < , > , or =

Answers

Answer:

11 1/2 < 4 yards or 12 feet

Step-by-step explanation:

Answer:

4 > 11 1/2.

Step-by-step explanation:

First we have to find what 4 yards equals to in feet, 4 yards = 12 feet. Therefore, 4 yards is bigger than 11 1/2.

What is -14 + (-4x)?

Answers

Answer:

-3.5

Step-by-step explanation:

-3.5 is the correct answer.

Arpad's roof is shaped like a square pyramid. The square base has side lengths of 55 feet. The height of each triangular face is 10 feet. What is the surface area of Arpad's roof (including the base)?

Answers

it’s 550. 55x10=55. length times height

Answer:

the answer is 4

Step-by-step explanation:

i just did it

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