Mathematics Middle School

Mrs. Ruiz bought 6 gallons of gas for $18.18, 9 gallons of gas for $27.27, and 16 gallons for $48.48. Is the rate of change constant?

Answers

Answer 1
What’s the assignment
Answer 2
Yes it is constant. If you divide all of the prices divided by their gallons you will get the same answer, which is 3.03 per gallon

Related Questions

Help please?????????????/

Answers

Answer:

A, true.

Step-by-step explanation:

Adjacent angles are two angles that have a common vertex and a common side but do not overlap.

And nice pic of Todoroki.

the answer is true. they are adjacent angles

pleaseee help asap easyy

Answers

It’s A
9.7 x 7 = 67.9
67.9 x 2 = 135.8
135.8 + 49 = 184.8

please help with 6 , 9 , & 10

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9514 1404 393

Answer:

  6. 15/22

  7. 1/12

  9. 1/16

  10. 0

Step-by-step explanation:

6. 10 of the 12 tiles are "not P", so the probability of a "not P" on the first draw is 10/12 = 5/6. After drawing a "not P" on the first draw, 9 of the remaining tiles are "not P". The probability of drawing one of those is 9/11. So, the joint probability of drawing two "not P" tiles is ...

  (5/6)(9/11) = (5·9)/(6·11) = 15/22

__

7. The probability of drawing a tile worth 3 points is 3/12 = 1/4. The probability of drawing a tile worth 1 point is 4/12 = 1/3. So, the joint probability of drawing a 3-point tile, then a 1-point tile is ...

  (1/4)(1/3) = 1/12

__

9. There are 3 of the 12 tiles worth more than 4 points. The probability of drawing one of them  is 3/12 = 1/4. The probability of doing it again is also 1/4, so the probability of doing it twice is ...

  (1/4)(1/4) = 1/16

__

10. The probability of drawing a Z is 1/12. Having drawn a Z, the probability of drawing a 10-point tile is 0/11. The joint probability of drawing a Z twice is ...

  (1/12)(0/11) = 0

_____

Additional comment

We revisited problem 7 because we needed that answer for problem 9.

please help me..for some reason its not letting me print out the question because it says *dont use such phrases* but anyways

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She can make two triangle gardens with the six pieces of wood she has
She can make 2 triangles because she only has 6 pieces

Help me plz I’ll give brainliest

Answers

Answer:

It is the top left one

Step-by-step explanation:

Part A: What is the approximate y-intercept of the line of best fit and what does it represent? (5 points) Part B: Write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice. Show your work and include the points used to calculate the slope

Answers

Answer:

Well I can't do it if you don not show the graph :(

Step-by-step explanation:

Answer:

Let's actually find the line of best fit...

m=(nΣyx-ΣyΣx)/(nΣx^2-ΣxΣx)

m=(11*836-130*55)/(11*385-3025)

m=2046/1210  

m=93/55

b=(Σy-93Σx/55)/n

b=(55Σy-93Σx)/(55n)

b=(7150-5115)/(55*11)

b=185/55, so the line of best fit is:

y=(93x+185)/55

A)  The approximate y-intercept (the value of y when x=0) is 185/55≈3.36.

Which means that those who do not practice at all will win about 3.36 times

B) y(13)=(93x+185)/55

y(13)≈25.34

So after 13 months of practice one would expect to win about 25.34 times.

An Xbox that normally sells for $390 is on sale at a 25% discount. What is the sale price of the Xbox? Round to the nearest cent.

Answers

Answer: $292.50

Step-by-step explanation:

The easiest way to do this is

Take $390 and multiply it by 0.75 (1-0.25)(.25 for the 25 percent off)

$390(0.75)

$292.50

Answer: 292.50

Step-by-step explanation:

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Answers

A I think sorry if I got it wrong

Answer:

Obviously A

Step-by-step explanation:

This is the easiest thing ive ever seen in my life

NOTE: it depends if the value of f is negative

The model car is 3 inches long. On the box, it says the scale of the model is 1/42. What is the length of the actual car in feet? (convert your answer from inches to feet.)

Answers

Answer:

10 feet 6 inch

Step-by-step explanation:

3 times 42 is 126. 126 to feet is 10 ft 6 inch

10 ft and 6in hope this helps

Help me plz only have 3 min

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Answer:

It is B or C

Step-by-step explanation:

the answer is b. you’re welcome

Please help...
i rlly need help on this

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Answer:

3

Step-by-step explanation:

Since

3 : 2 = X : 2

Then we know

3/2 = X/2

Multiplying both sides by 2 cancels on the right

2 × (3/2) = (X/2) × 2

2 × (3/2) = X

Then solving for X

X = 2 × (3/2)

X = 3

Therefore

3 : 2 = 3 : 2

can anyone be my tutor? like help me with my hw

Answers

Answer:

if i can help im gonna help ofc

I will be your tutor I can help :)

Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s height is 4 feet, 2 inches.

1. Should Clare's or the doctor's measurement be considered the actual height? Explain your reasoning.

2. What was the error, expressed in inches?

3. What was the error, expressed as a percentage of the actual height?

Answers

Answer:

Percentage of error by Clare is estimated as 4.1667 %

Step-by-step explanation:

Height measured by Clare = 4 feet

Height measured by Doctor = 4 feet, 2 inches

Percentage error = ?

Percentage error = Difference/ Actual height *100

Percentage error = (2/ (4*12))*100

Percentage error = 4.1667 %

The accurate height is measured by Doctor, as he have more accurate measurement system.

solve the system of linear equations by graphing y=x-1 and y=-x+3

Answers

Is this what u wanted?

is that what you wanted?
the red line is - y=x-1
the blue line is - y=x+3

PLEASE HELPPPPP!!!

C: the x-value is between one and two and the Y value is between -3 and -4
D: The x-value is between -3 and -4 in the Y value is between one and two

Answers

C because the line of intersection is in quadrant 2
Its the second one C

SAME SCENARIO - DIFFERENT QUESTION

The owner of a new coffee shop is keeping track of how much each customer spends (in dollars). A random number table was used to generate a random sample of 20 pieces of data. The dot plot below shows the twenty pieces of data.

Based on the data in the dot plot, what would you expect the mean of the sample to be? EXPLAIN YOUR REASONING.

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Answer:

20=XY

Step-by-step explanation:

PLEASE HELP, CORRECT ANSWER GET BRANiliest

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Answer:

Yes, this is correct

Step-by-step explanation:

First of all look at the picture it will help.

2nd of all rhombuses are always Perpendicular when you Bisect them.

I just responded so u could give that person brainliest!!!!

Find the area Hint:Triangle and semi-circle

Answers

Answer:

The triangle formula is always base times height divided by 2 I forgot the circle formula

Step-by-step explanation:

the area of the triangle is 28, using the formula 1/2bh, base is 8 height is 7. the area of the semi circle is 25! your total is 53.

The original price for a pair of shoes is $42. The sale price is 20% off and the tax is 6%. What is the final price for the pair of shoes?

Answers

Answer:

final price is 38.58

Step-by-step explanation:

35.61
42-20% = 33.60
33.60 * 0.06 (6%) = 2.01 (tax)
total - 35.61

(question 1 ) −8 ≤ −6; Add 14 to both sides

(question 2 ) 9 > −5; Subtract 9 from both sides.

(question 3 ) The table below shows some prices at a produce stand.

Produce Price per Pound
Onions $3.25
Yellow Squash $2.99
Spinach $2.00
Potatoes $0.50

Florence wants to spend no more than $8 on onions. Will she be able to buy 2.6 pounds of onions? Complete the explanation. Enter your answer as a decimal rounded to tenths.

Florence is able to buy
pounds of onions at most, which means she
(select)
able to buy 2.6 pounds of onions.


(question 4)For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −32°C or the metal will not be usable. The physicist changes the metal's temperature at a steady rate of −2°C per hour.


Part 1 out of 3
Let t represent time in hours. Enter an inequality. Use the fact that the rate of change in temperature times the number of hours equals the final temperature.


The inequality is

Answers

Answer:

hard question

Step-by-step explanation:

question 1: 6 < 8
question 2: 0 & -10
florence is able to buy 2.5 pounds of onions at most which means she isn’t able to buy 2.6 pounds of onions.

The Barrel in Problems 4 is 5 feet long and the radius of its base is 1.5 feet. ​

Answers

The answer that you are look big for would be 39.829 feet.

Parker went shopping for a new pair of sneakers. Sales tax where he lives is 5%. The price of the pair of sneakers is $23. Find the total price including tax. Round to the nearest cent.

Answers

23 x 5% =

23 x 0.05= 1.15 (total sales tax)

23 + 1.15= $24.15 (total price)


23 x 5% =

23 x 0.05= 1.15 (total sales tax)

23+ 1.15= $24.15 (total price)

Which transformation is shown on the coordinate plane below?

Answers

Answer: A. Translation

Explanation: Translation is two of the same objects, but one switching their origin.

Answer:

Translation

Step-by-step explanation:

its the same figure on a different area of the coordinate plane

the cost of 25 apples is rupees 200 . the cost of 29 oranges is half the price of 25 apples. Find the cost of oranges.

Answers

Half the price of 25 apples is 100
100/29=3.45 rupees per orange
25 Apples cost 200 rupees and 29 oranges cost half of what the apples cost witch means the oranges cost 100 rupees.I

Select the statement that makes this comparison correct: 0.45 ________ 0.39.
Question 1 options:

0.39 > 0.45

0.45 > 0.39

0.45 < 0.39

0.39 = 0.45

Answers

Answer:

its c

Step-by-step explanation:

look at the tenths

.39         .45

I think that the correct answer would be the third option. Option C

Pls help will give brainliest

Answers

Answer: 5, -6

5= x -6= y

X:5, Y:-6
Answer: 5 and -6.

A line that includes the points (4,j) and ( – 8, – 9) has a slope of 16 . What is the value of j?

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The answer is j= -8, if the slope is 16/1 then -8 goes up 16 to 4 and -9 goes over 1 to -8

is -6/0 as a fraction = -6 orrrrrr undefined

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It is undefined because you can’t have 0 as a denominater
^yeah I got the same answer

geometry, I need help thanks

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it’s A buddy! i just did this one for another student also

Circle the reason for each of the following manipulations used to simplify the product (8x^2) (3x^7) ?

Please help

Answers

(8x²) (3x²)

8x² ⋅ 3x²

24x^9
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