Timothy recorded the monthly change in his savings account balance, in dollars, for 8 months. Month January February March April May June July August Balance Change (dollars) −30 −15 55 40 −20 −45 −10 65 What is the average monthly change in Timothy's savings account balance? Enter your answer in the box.

Answers

Answer 1

To find the average, we'll sum up all the monthly changes and divide it by the number of months. Summing all the numbers, we get –30 + (–15) + 55 + 40 + (-20) + (-45) + (-10) + 65 = 40.
The number of months is 8. So dividing it by 8, we get
40/8 = 5

So the average monthly change in Timothy's savings account balance is $5.

Answer 2

Answer:

Step-by-step explanation:

took the test

Related Questions

Fran made 18 three point shots and 12 one point shots she had a total of 102 points for the basketball season how many 2 point shots did Fran make for the season? explain your answer

Answers

18 × 3 = 54

Fran made 54 three point shots for the season.

12 × 1 = 12

Fran made 12 one point shots for the season.

Add the three point shots and one point shots together:

54 + 12 = 66

Now, subtract 66 (Number of three point shots and one point shots) from 102 (Total amount of shots)

102 - 66 = 36

36 ÷ 2 = 18

So, Fran made 18 two point shots for the season (Which resulted in 36 points)

And there's your answer!

There are 117 stuff members in your school. 1/3 of them are going away for the thanksgiving holiday. How many staff members are not traveling.

Answers

Hey You!

117/3 = 39
39*2 = 78

So, 39 members are going away for the Thanksgiving Holiday, and 78 will remain.

explain: staff members away= 117×1/3,then we use the total number of members and minus the one who is away and we get

Staff members not travelling
=117-117×1/3
=117-39
=78

Addy has five times more blue marbles than red marbles. She has twice as many red marbles than green marbles. She has 6 red marbles. Which number sentence could be used to find the number of green marbles?

Answers

I would say it is B. 6 X 5 =30

So you have 6 marbles and 6 is twice as many as however many green marbles you have. The "five times more blue marbles than red marbles" is used to confused you, it's irrelevent to solving the problem. For the answer, if you use the opposite equation of multiplication, division, it'll give you the answer. I believe doing that is called inverse something, but I can't remember atm ꒪▿꒪

So I'm quite certain it's C.

The perimeter of a geometric figure is the sum of the lengths of its sides. If the perimeter of the pentagon to the right (five-sided figure) is 96 meters, find the length of each side. 2 of the sides= 2.5x

Answers

Final answer:

The length of each side of the pentagon is 19.2 meters.

Explanation:

To find the length of each side of the pentagon, we need to divide the perimeter of the pentagon by 5, since a pentagon has 5 sides. If the perimeter is 96 meters, each side would have a length of 96/5 = 19.2 meters.

whats the equivalent expressions by conbining like terms 5a+ 4+ 2a

Answers

7a+4, when combining like terms simply add together the things that look alike

If you add 5a and 2a you get 7a then you are left with 4. Meaning, your answer would be 7a+4. Since 4 doesnt have a variable, you dont add it to 7a.

Megan consumed 3.5 gallons of water in one day. How many milliliters are equal to 3.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters?

A 1,324.75 milliliters
B 13,247.5 milliliters
C 132,475 milliliters
D 1,324,750 milliliters

Answers

1 gallon = 3.785 liters

3.5 * 3.785 = 13.2475 total liters

1 liter = 1000 milliliters

13.2475 * 1000 = 13,247.5 milliliters

Answer is B

Answer:

Step-by-step explanation:

hope this helped you!!

If there are a number of different sounds being produced simultaneously, the resulting intensity is the sum of the individual intensities. How many decibels louder is the sound of quintuplets crying than the sound of one baby crying?

Answers

Formula: Δ L = 10 × log n.
Δ L = level difference.
n = number of equal loud sound sources.

n = 5
10 × log10 5 = +6.9897 dB compared to the case that only one source is available.

Final answer:

The sound of quintuplets crying is 7 dB louder than the sound of one baby crying because a factor of five in intensity corresponds to a 7 dB increase in sound intensity level.

Explanation:

The question asks how many decibels louder the sound of quintuplets crying would be compared to the sound of one baby crying. To calculate this, we need to understand that intercity levels in decibels (dB) are measured logarithmically. This means that for every ten-fold increase in intensity, the sound level goes up by 10 dB. We also know that a factor of five in intensity corresponds to an increase of 7 dB.

If one baby crying produces a certain sound intensity, then five babies (quintuplets) crying simultaneously would increase the intensity by a factor of five. Hence, the sound of quintuplets crying would be 7 dB louder than the sound of one baby crying, based on the given references.

Find the percent increase for the given original and new quantities in parts a through c.
a. Original quantity: 100 New quantity: 106
b. Original quantity: 10 New quantity: 16
c. Original quantity: 50 New quantity: 56
a. Fill in the boxes to find the percent increase for the given quantities.
Amount of increase:
▼
100 minus 106100−106
106 minus 100106−100
equals=
nothing
Percent increase:
▼
100 divided by 100100÷100
100 divided by 6100÷6
106 divided by 100106÷100
100 divided by 106100÷106
6 divided by 1006÷100
equals=

nothing
equals=

nothing% increase
(Type integers or decimals.)

Answers

Answer:

Amount of Increase:

106-100= 6

Percent Increase:

6 divided by 100 , 0,06, and 6

Step-by-step explanation:

I couldnt put a division sign so i jsut but the word and yea hope that helps

Final answer:

The percent increases for the given quantities are 6%, 60%, and 12% respectively. To find these, subtract the original quantity from the new quantity to find the amount of increase, then divide this by the original quantity and multiply by 100.

Explanation:

In order to find the percent increase, you can follow this formula:

Step 1: Subtract the original quantity from the new quantity. This gives you the amount of increase.Step 2: Divide the increase by the original quantity.Step 3: Multiply result by 100 to get the percent increase.

Now, let's solve the questions :

a. Original Quantity: 100, New Quantity: 106

Amount of increase = 106 - 100 = 6

Percent increase = (6/100)*100 = 6%

b. Original Quantity: 10, New Quantity: 16

Amount of increase = 16 - 10 = 6

Percent increase = (6/10)*100 = 60%

c. Original Quantity: 50, New Quantity: 56

Amount of increase = 56 - 50 = 6

Percent increase = (6/50)*100 = 12%

Learn more about Percent Increase here:

https://brainly.com/question/5449967

#SPJ3

How can i do this? I don't quite understand "give an example of when it might be appropriate to estimate an answer rather than provide the exact answer" Thanks for your help

Answers

Imagine that you are planting flowers. The row is 68.5cm long. The plants should be 7cm apart. How many do you need. You know 68.5 is close to 70 and the plants should be 7cm apart and you know 70 divided by 7 is 10. So 10 plants should be enough. The reason why I rounded 68.5 because I needed to make the numbers easy to divide so I can get to answer that is close to what I need. If this example and my explaining did not help then I am sorry,

Gordon read 18 pages of a book in 40 minutes. What was the unit rate per minute? Per hour?

Answers

18 pgs. in 40 min = 0.45 pages per min

27 pages per hour and 0.45 pages per minute.

The greater of 2 consecutive even integers is 18 less than 3 times the smaller integer. What is the greater integer?

Answers

3x-18 =x+2

2x-18 =2

2x = 20

x = 20/2 = 10

larger number is 12

According to the general equation for conditional probability, if P(A^B)=3/4 and P(B)=4/5, what is P(A B)?

Answers

I found that P(A B) equals 0.96

Answer:

0.96

Explanation:

A rule of conditional probability states that

P(A∣B)=P(A∩B)P(B)

So in this case it would be:

P(A∣B)=4556=4⋅65⋅5=2425=0.96

15.3+1h=1.3−1h solve for h

Answers

the answer is negative 7

the answer is -7, heres how. start by moving the 15.3 to the other side, giving you 1h= -1h-14. now add 1h to both sides so that they're isolated. 2h= -14. divide by 2. h= -7

What is the median of the following set of numbers? 15, 12, 18, 17, 13, 12, 12, 14, 15, 19

Answers

the answer is 14 you put the numbers in order and the middle number is the median

14 is the answer because it is in the middle of the list when put in numeric order

12, 12, 12, 13, 14, 15, 15, 17, 18, 19

Ms. trane puts some stickers in 3 rows.there are 2 stickers in each row. how many stickers does Ms. Trane have

Answers

3 x 2= 6

She has 6 stickers

Ms. Trane has 6 stickers because you would multiply 3x2 and that equals 6.

Hope this helped, let me know if you ever need any more help :)

x over 4 + 1 = -5 solve the equation
A. -2
B 16
C. 4
D. -24
My answer is C, please correct me if I'm wrong.

Answers

I got x= -25

Hope this helps.

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Answers

The correct answer that you are looking for is C ( 75,000).

The correct answer is A. 70,000. Because your looking at 4 to round up the seven but because 4 is lower than 5 it would just be 70,000

Can someone please help me with this math problem?? Number 13

Answers

a. 1x1 = 1 in
b. 0.5 x 0.5 = 0.25 in
c. 0.25 + 0.25 + 0.25 = 0.75 in

1x1=1 in.²
1/2x1/2=1/4 in.²
1-1/4=3/4 in²

Bill drove from Washington DC to Charlotte in 6.5 hours. What was his average speed in miles per hour?

Answers

If you search it up, the distance from Washington DC to Charlotte is 404.9 miles.

The formula for speed is distance divided by time. We can easily do that with this equation:

404.9 / 6.5 = 62.2923077, or about 63 miles per hour.

Emily baked 3 batches of 13 sugar cookies each. She ate 2 of the cookies and gave 10 of them to her neighbor. In return, her neighbor gave her half of a batch of a dozen chocolate chip cookies. How many cookies does Emily have?

Answers

33 cookies is how many she has by the end.

3 times 13 = 39 minus 2 = 37 -10 equals 27 + 6 equals 33

she has 33 cookies

If a and b are any two real numbers, explain how you calculate the difference a - b. Be sure to include the following in your explanation.
(A) a description of the relationship between addition and subtraction
(B) how you can use a number line to help with the calculation
(C) how you can determine the sign of the result

Answers

- Subtraction can be thought of as the inverse operation of addition, OR as addition itself, if you look at it as adding a negative number.

- The number line allows us to interpret subtraction (or addition of a negative) geometrically; we can view it as a movement to the left on the number line with a distance equal to the number being subtracted.

- Lastly, the value of any expression a - b (where a and b are real numbers) is determined by the relative sizes of the numbers. If a > b, then a - b > 0 (a positive result). If b > a, then a - b < 0 (a negative result.

Please help for points 12 minutes help.

Answers

The answer is A. The only answer that shows that point C is -0.38 is when its before -0.4 and close to -0.4.

At a party, 10 people equally shared 2 1/2 gallons of ice cream. How much ice cream did each person get?

Answers

2.5 gallons is divided among 10 people.
2.5/10=0.25 gallons

2 1/2= 2.5 so therefore 10÷2.5=4. and that then is simplified to 0m25

what is 7/12 plus 1/4

Answers

7/12 + 1/4
Find common denominators.
12x1=12
4x3=12
Multiple 4 by 3 in the second fraction to make a common denominator. What you do to the denominator you do to the numerator, so 1x3=3 and 4x3=12
7/12+3/12=10/12
To put into lowest terms divide the numerator and denominator by 2, since they share a factor.
The answer is 5/6

Answer:

5/6

Step-by-step explanation:

the answer above is correct

Emily has 32 grams of a 25% sugar syrup, but this is just too sweet for her! How much pure water should she add to have a 10% syrup?

Answers

By this information, we know: (just so you know, when I will write the equation, the multiplication sign will be ^)

25%+0%=10%
32g xg (32+x)g
Now, we create an equation:

(0.25^32)+(0^x)=0.1^(32+x)
8+0=3.2+0.1x
8=3.2+0.1x
4.8=0.1x
48=x
Answer: 48 gram.

48 grams of water is added to the syrup solution.

Percentage

It represents the x value of something out of 100 is called percentage.

Given

32 gram of a 25% sugar syrup.

To find

How much pure water should she add to have a 10% syrup?

How to calculate?

Let x gram of water is added.

25% + 0% = 10%

(32)g (x)g (x+32)g

Now we create the equation.

[tex]\begin{aligned} (0.25*32) + (0*x) &= [(x+32)*0.1]\\8 + 0 &= 0.1x + 3.2\\8 - 3.2 &= 0.1x\\4.8 &= 0.1x\\x &= \dfrac{4.8}{0.1} \\x &= 48\\\end{aligned}[/tex]

Thus, 48 grams of water is added to the syrup solution.

More about the Percentage link is given below.

https://brainly.com/question/8011401

The ratio of boys to girls in the Science Club is 3:5. If there are 60 girls, how many boys are there?
A) 23
B) 36
C) 38
D) 45

Answers

25 boys.

15/3 = 5

5*5=25

The answer is B, 36.

This is because 5 x 12 is 60, and 3 x 12 is 36. Have a good day.

a jet takes 5 3/4 hours to fly 2,475 mi from new york city to los angeles. about how many hours will a jet flying at the same average rate take to fly 5,452 mi from los angeles to tokyo? Please explain using ratios.

Answers

We have:

Time = 5³/₄ hours
Distance = 2475 miles
Speed = Distance ÷ Time
= 2475 ÷ 5³/₄
= ⁹⁹⁰⁰/₂₃ = 430.43 miles/hour

Distance LA - Tokyo = 5452
Speed = 430.43 miles/hour
Time = Distance ÷ Speed
= 5452 ÷ 430.43
= 12.7 hours

Using ratios:

2475 miles ⇒ 5³/₄ hours
5452 miles ⇒ x hours

Find the multiplier ⇒ 5452 ÷ 2475 = 2.203
Then multiply 2.203 by 5³/₄ to get 12.7 hours

Josh walked a total of 5 miles today. First he walked 1 mile from his house to the park then he walked laps around the 3/4 mile loop trail at the park. Finally he walked back home. Howany laps did Josh walk around the trail?

Answers

Josh walked 4 laps around the trail.

To find out how many laps Josh walked around the trail, we first need to calculate the distance he walked from his house to the park and back, and then subtract that from the total distance.

Distance from home to park: Josh walked 1 mile from his house to the park.

Distance from park to home: He also walked 1 mile back home.

Now, let's calculate the total distance Josh walked around the trail:

Total distance walked = Total distance - (Distance from home to park + Distance from park to home)

Total distance walked = 5 miles - (1 mile + 1 mile)

= 5 miles - 2 miles

= 3 miles

Now, we know that Josh walked laps around a 3/4 mile loop trail, and he walked a total of 3 miles. To find out how many laps he walked, we divide the total distance by the distance of each lap:

Number of laps = Total distance / Distance per lap

= 3 miles / (3/4 mile)

= 3 miles * (4/3)

= 4 laps

So, Josh walked 4 laps around the trail.

Please answer all the questions (a,b, and c)

Answers

A.
Okay Each game costs $24.99 and Sandy wants 5.

24.99 × 5 ≈ 124.95 And your estimate should be $125

B. Sandy doesn't have enough money. She only has $115 and the games in total cost $124.95.

C. My estimate is higher because I rounded up.

B. She does NOT have enough money, because when you add 24.99 5 times you end up with it equalling 124.95, and Sandy only has 115. So she can't afford 5 video games.

Also, just for your safety, please don't take pictures of your school with your full name on it. Its a safety hazard. And I don't want anything to happen to you if there is a crazy person on here....

Si S es el 150% de T, qué tanto por ciento de T es (S + T)?

Answers

Final answer:

If S is 150% of T, then to find what percentage (S + T) is of T, we calculate (S + T) / T * 100. By substituting S = 1.5T into the equation, we determine that (S + T) equals 250% of T.

Explanation:

If S is the 150% of T, this implies that S is 1.5 times T (since 150% can be expressed as 1.5 in decimal form). To express S as a percentage of T, we can set up the equation S = 1.5T.

Now, we are asked to find what percentage of T is (S + T). To find this, we simply add S and T together: S + T = 1.5T + T = 2.5T. Now, to express this sum as a percentage of T, we divide the sum by T and then multiply by 100.

So, ((S + T) / T) * 100 = (2.5T / T) * 100 = 2.5 * 100 = 250%. Therefore, (S + T) is 250% of T.

To find the percentage that (S + T) is of T, we first need to find the value of S and T. The given information states that S is 150% of T. This means that S = 1.5T. To find (S + T), we substitute the value of S in terms of T: (1.5T + T) = 2.5T.

Now, to find the percentage that (S + T) is of T, we divide (S + T) by T and multiply by 100: ((2.5T / T) imes 100) = 250%.

Therefore, (S + T) is 250% of T.

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