Mathematics Middle School

A homeowner compared his electric bills from the last four months. In January, his bill was up $30; in February it was up another $6; in March, his bill was down $25; and in April, it was down $16. Which month showed the greatest change in his bill?

March
February
January
April

Answers

Answer 1
January showed the greatest change in his bill.
Answer 2
April showed a big change to his bill.

Related Questions

Find the perimeter and area.

a. Rectangle, L=14m and B=9.5m
b. Square, side=14.5cm
c. Rectangle, L=25cm and B=16.8cm

Grade#8

Answers

Answer:

Therefore, the perimeter and area of the given shapes are:

a. Perimeter = 47m, Area = 133m²
b. Perimeter = 58cm, Area = 210.25cm²
c. Perimeter = 83.6cm, Area = 420cm²

Step by step solved:

a. To find the perimeter of a rectangle with length L=14m and breadth B=9.5m, we use the formula:

Perimeter = 2(L+B)

Plugging in the values, we get:

Perimeter = 2(14m + 9.5m) = 2(23.5m) = 47m

To find the area of the rectangle, we use the formula:

Area = L x B

Plugging in the values, we get:

Area = 14m x 9.5m = 133m²

b. To find the perimeter of a square with side length=14.5cm, we use the formula:

Perimeter = 4 x side

Plugging in the value, we get:

Perimeter = 4 x 14.5cm = 58cm

To find the area of the square, we use the formula:

Area = side²

Plugging in the value, we get:

Area = 14.5cm x 14.5cm = 210.25cm²

c. To find the perimeter of a rectangle with length L=25cm and breadth B=16.8cm, we use the formula:

Perimeter = 2(L+B)

Plugging in the values, we get:

Perimeter = 2(25cm + 16.8cm) = 2(41.8cm) = 83.6cm

To find the area of the rectangle, we use the formula:

Area = L x B

Plugging in the values, we get:

Area = 25cm x 16.8cm = 420cm²

Answer:

Step-by-step explanation:

rectangle Perimeter = 2(l+b)

So, 2(14+9.5)

=> 46.5m

area = lb

So, 14*9.5

=> 133m^2

Square Perimeter = 14.5*4

= 58cm

Area = 14.5^2

= 210.25m^2

Rectangle #2

2(25+16.8)

=> 83.6 cm

Area = 420m^2

hope it helps

no problem

PLEASE HELP! Due TODAY
Write equation to represent the relationship between d(distance traveled) and t(time). Use given variables (lower case), no spaces.

Answers

Answer:

21

Step-by-step explanation:

127137-3218

12339

31

13223

=21

The equation is y=60x because 1 km per hour

Use the info given in the figure to find the length RV. If applicable, round your answer to the nearest whole number. The lengths on the figure are not drawn accurately

Answers

Answer:

this was made on my birthday

Step-by-step explanation:

pleasse no wrong answers

Answers

Large Polygon 14 x21= 294

Little Polygon 2x(2x2) =8

294-8=286

please help math sucks

Answers

Answer:

o  3 pets, at most, are allowed in the apartment.

Step-by-step explanation:

Answer:A

Step-by-step explanation:

x<=3 means maximum number of pets allowed is 3 so, answer is 3 pets at most allowed

Can someone pls help

Answers

The correct answer is -2/3. Because of bodmass
The correct answer would be 2/3

pls, help me with this.

Answers

Answer:

huh

Step-by-step explanation:

There’s nothing there

question is below please help me answer it

Answers

A. 1/10, 3/25, 7/50, 9/75, 13/100
1/10= 0.1
3/25= 0.12
7/50= 0.14
9/75= 0.12
13/100= 0.13

B.largest.



Not sure if this helped any. Sorry if it didn’t :(

urgent, 2 screenshots!!

Answers

The first screenshot:
1. 45/7
2. 90/11
3. 4/117
4. 12/5

Hope it helps❗️

Match each scenario to the absolute value expression that describes it.

1. the amount of change when the temperature rises from 5°C to 13°C
|+7|
2. the change of an account balance when spending $8
|+8|
3. the change in depth when diving down 7 meters in the ocean
|-7|
4. the amount of improvement when increasing your grade by 7 points
|-8|
5. the change in height when climbing a 5-foot wall
|+5|
6. the distance moved when going backwards five spaces in a board game
|-5|

Answers

1.) |5 - 13| = |-8| = 8

2.) |-8| = 8

3.) |-7| = 7

4.) |7| = 7

5.) |5| = 5

6.) |-5| = 5

Find the measure of

Answers

Answer:

Step-by-step explanation:

hello this is

Answer:

Step-by-step explanation:

Doira has a company that sells plants. She sells 34 for plants for $9,000 each her first day. The next couple days she sells 34 for $99,999 each. If she keeps selling them for $99,999 each for 100 weeks,how many plants will she have sold? How much money will she have made?

Answers

Answer:

1)23,800 plants.

2)$2,380,068,200

Step-by-step explanation:

1) if Doira sells 34 plants for $99,999 each for 100 weeks, she will have sold a total of 23,800 plants.

2.On the first day, Doira sold 34 plants for $9,000 each, so she made a total of 34 x $9,000 = $306,000.

In the following days, she sold 34 plants for $99,999 each, so her daily earnings were 34 x $99,999 = $3,399,966.

If she continues to sell 34 plants for $99,999 each for 100 weeks, she will sell a total of 34 x 100 x 7 = 23,800 plants.

Her total earnings from selling 34 plants for $99,999 each for 100 weeks will be 23,800 x $99,999 = $2,379,762,200.

Adding her earnings from the first day, her total earnings will be $2,379,762,200 + $306,000 = $2,380,068,200.

Answer: she would sell 340 plants and make $9,999,900

Step-by-step explanation:

34 x 100 =340

99, 999 x 100 = 9,999,900

Simplify the following 5/8 × 6/7.

Answers

[tex] \frac{15}{28} [/tex]

Multiply numerator by numerator and denominator by denominator

15/28 is the answer

Will give 50 points answer all questions

Answers

Answer:

1: height=3

width = 9

2: 24

3:45

4:60

——————————————————————————————

— number #1

H - 3

W - 9

——————————————————————————————

— number #2

= 24

— number #3

= 45

— number #4

= 60

——————————————————————————————

What is 5/6 of 14 1/2?

PLEASE explain how it is!

please help its last question and i been on it for 15 minutes

Answers

Answer:

5/6 of 14 1/2 is 12.08333333

Step-by-step explanation:

14 1/2 = 14.5

14 = 14

and 1/2 = 0.5

now, you take 14.5 and divide by the denominator of the fraction that you have, which is 6

14.5 ÷ 6 = 2.416666667

and now you take 2.416666667 and multiply that by 5, because you are trying to find 5/6 of this number

2.416666667 × 5 = 12.08333333

So your answer is 12.08333333

It’s 12 1/12.
You basically just multiply 5/6 and 14 1/2 which is 145/12 and that simplified is 12 1/12

Find 25 more than 15% of 300

Explain

Answers

Answer:

70

Step-by-step explanation:

The explanation is given there...

Answer: 70

10% of 300 = 30
5% of 300 = 30/2 = 15
30+15=45
45+25=70

∩ · ω · ∩ ⇒ what is the first quartile of the data shown on the box plot in the image ≈

Answers

Answer:

70 I think..... pretty sure... I haven't done these in a while
sorry about the late answer :D

The prize of a pencil is Rupees 12.5 What is the prize of 9 such pens?

Answers

Answer:

Price of 1 pencil is 12.5

price of 9 pencil is 12.5*9

=112.5

Answer:

112.5 rupees

Step-by-step explanation:

12.5 x 9 = 112.5

Jasmine accidentally hot a golf ball through her neighbors window to replace the $150 window she pays her neighbor $10 of her tutoring earnings each week. Write an equation for each problem situation then graph each equation

Answers

Answer: y= -10x+150. The graph would have a slope of negative ten, cross the y-axis at (0, 150), and be decreasing. The line will cross the x-axis at (15,0), meaning it will take 15 weeks to pay her neighbor the money for the window.

Step-by-step explanation: y = the money Jasmine still owes to her neighbor. x = the # of weeks. She pays off ten dollars a week. She needs to pay 150 dollars to her neighbor.

A random sample was taken to determine whether students from a certain classroom prefer to shop at Store A, Store B, or Store C. Which of the following would represent a random sample?

A. putting all the names in alphabetical order and selecting every fourth
B. student selecting all the students that have a last name that begins with R
C. selecting all the girls
D. putting all the names in a hat and selecting six student

Answers

D is the answer I think hope it helps
D is the correct answer for this question

Find the sum. Write your answer in simplest form.
3/7 + 2/3

Answers

Answer:

Step-by-step explanation:

3/7 + 2/3

Change both to the most common denominator

3/7 x 3/3 = 9/21

2/3 x 7/7 = 14/21

9/21 + 14/21

9+14 = 23

23/21

1 2/21

Not sure if thats helpful or not

Answer:

Step-by-step explanation:

3/7 + 2/3

Change both to the most common denominator

3/7 x 3/3 = 9/21

2/3 x 7/7 = 14/21

9/21 + 14/21

9+14 = 23

23/21

1 2/21

please help i only
have 3 more minutes to complete

Answers

Answer:

option d

Step-by-step explanation:

the answer is ddddddd

Will give 50 points, answer all

Answers

Answer:

198

Step-by-step explanation:

length =11

width=18

Length times width = area

11 times 18 equals 198

i hope this helps! <3

Page 1, Answer:
168 cm

Explanation:

First we should find the area of the non-shaded parts

Length: 5cm
Width: 4cm
5x4=20
1st square= 20 cm

Length: 5cm
Width: 2cm
5x2= 10
2nd square= 10 cm

Now we add:
20+10=30

Shaded part:
11x18=198

We have to subtract the shaded part by the non shaded part:
198-30=168

Answer= 168cm


Page 2:

Answer 1:
Both are equal

Explanation:

Both are equal because:

A: 8+8+2+2

16+4=20
A=20cm

B: 5+5+5+5
5x4=20
B=20 cm

Answer 2:
16

Explanation:

Since we are already given the product we need to find the factors, square has 4 equal sides so we have to divide by 4:

64/4=16
Ans=16cm

Answer 3:
62cm

Explanation:
We need to divide the shape into 2.

Rectangle 1:
10+5+?+?

Since we already know what one side is it will be the same on the other side:

10+10+5+5
20+10=30

Rectangle 1=30cm

Rectangle 2:

Here we start to add and subtract:

Length: 10-5=5

Width: 6+5=11

5+5+11+11
10+22=32
32 cm

Total:
Now that we know both perimeters we add:

32+30=62

Total=62cm

From a log of wood of length (8x+12) m, a piece of length (4x+3) m was cut. Find the length of the remaining log of wood.


Grade#7

Answers

Answer: 4x+9

Step-by-step explanation: (8x+12)- (4x+3)

Answer: (4x+9)

Step-by-step explanation:

Log of wood = (8x+12)

piece length = (4x+3)

So, (8x+12) - (4x+3)

=> (8x+12) - 4x - 3

=> 8x-4x +12 -3

=> 4x + 9

So, the length of the remaining piece of wood = (4x+9)

hope it helps

HURRYY! Will give Brainliest! The amount of sports drink in a cooler during practice is modeled by the equation

y = -24x + 648, where y is the number of ounces in the cooler after practice and x is the number of players at practice who take drinks from the cooler.

Based on the information in the equation, which statements are true?





A. The cooler is meant to be used by only 24 players.

B. Before practice, there are 648 ounces of sports drink in the cooler.

C. If 24 players get drinks from the cooler, they will drink a total of 648 ounces of sports drink.

Answers

Answer:

Step-by-step explanation:

ounces of sports drink in the cooler.

C. Each player is expected to drink 24 ounces of sports drink during practice.

D. If no players take drinks from the cooler, there will be 648 ounces of sports drink in the cooler after practice.

Statement B is true: Before practice, there are 648 ounces of sports drink in the cooler, as the y-intercept of the equation is 648.

Statement C is not true: The coefficient of x, -24, does not represent the amount of sports drink each player is expected to drink. It represents the rate at which the amount of sports drink in the cooler decreases as players take drinks.

Statement D is not true: If no players take drinks from the cooler, x would be 0, and the amount of sports drink in the cooler after practice would be y = -24(0) + 648 = 648. However, this situation is not realistic, as players would normally take drinks from the cooler during practice.

Statement A is not true: The equation does not limit the number of players who can use the cooler. The equation only models the rate at which the amount of sports drink in the cooler decreases as players take drinks.

B.
In mx+b, b is initial value meaning they started with 648 ounces

2A. Find the area of a parallelogram with the following measurements.
a. base = 8cm, height=14cm b. base=18cm, height=6cm

Grade#7

Answers

Answer:

a) formula of parallelogram- BASE × HEIGHT

Step-by-step explanation:

Area:-B×H

area- 8×14

area of parallelogram= 112cm²

The formula of the area of a parallelogram is : Base x Height

Therefore :

Area - base x height
Area- 8 x 14
= 112cm squared

Write and evaluate an expression that tells you to subtract 6 from 9 then subtract the difference from 12 and then multiply by 3 use at least two types of grouping symbols

Answers

Step-by-step explanation:

One possible expression using two types of grouping symbols is:

3 × [(12 - (9 - 6))]

This expression first subtracts 6 from 9 to get a difference of 3, then subtracts that difference from 12 to get a result of 9. Finally, it multiplies 9 by 3 to get a final answer of 27. The grouping symbols used are parentheses to group the subtraction of 6 from 9, and then another set of parentheses to group the subtraction of that difference from 12. The outermost grouping symbols are the multiplication symbol and the pair of brackets used for clarity.

A wallet contains 23 bills. All the bills are $1 bills and $5 bills. There are 7 more $1 bills than $5 bills. How much money does the wallet contain?

Answers

Answer:

Step-by-step explanation:

Let's say x is the number of $1 bills and y is the number of $5 bills. We know that:

x + y = 23

x = y + 7

We can use rearrange the second equation and add them together to find x. Then, we can plug x into any one of our equations to find y and calculate how much money is in the wallet.

x + y = 23

x - y = 7

2x = 30

x = 15 $1 bills

15 = y + 7

y = 8 $5 bills

15 * $1 + 8 * $5 = $15 + $40 = $55

Hope this helps!

List the decimal numbers 1.54, 1.9, 1.09, and 1.5 in order from least to greatest

Answers

1.09, 1.5, 1.54, 1.9
1.09 , 1.5 , 1.54 , 1.9

There are two spinners containing only blue and green slices.
Spinner A has 4 green slices and 16 blue slices.
All the slices are the same size.
Spinner B has 9 green slices and 3 blue slices.
All the slices are the same size.

Each spinner is spun.
List these events from least likely to most likely.
Event 1: Spinner B lands on a blue slice.
Event 2: Spinner B lands on a green or blue slice.
Event 3: Spinner A lands on a yellow slice.
Event 4: Spinner A lands on a green slice.

Answers

Answer:

Step-by-step explanation:

2,1,4,3
explanation
event 2 has to happen because there are no other colors.
event 1 will likely come next because there are more blue slices than green slices.
event 4 will come best because it is less likely for it to land on a green slice than a blue slice
event 3 can never happen because there are no yellow slices
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