Mathematics Middle School

At noon, a hot-air balloon was at an elevation of 2,400 feet. One hour later it was at an elevation of 1,700 feet.
a. write a numerical expression you can use to find the change in altitude from noon to 1 p.m
b. evaluate your expression and explain what it means

Answers

Answer 1

Answer:

a.2,400-1700=

b. 700: the hot air balloon decreased height by 700 feet

Related Questions

Robb’s Fruit Farm consists of 100 acres on which three different types of apples grow. On 25 acres, the farm grows Empire apples. McIntosh apples grow on 30% of the farm. The remainder of the farm grows Fuji apples. Shade in the grid below to represent the portion of the farm each type of apple occupies. Use a different color for each type of apple. Create a key to identify which color represents each type of apple.

Answers

Empire: Black
- the ratio is 25:100

McIntosh: Purple
- the ratio is 30:100

Fuji: Green
- the ratio is 45:100

Rosalina used 1/4 teaspoon of salt and 1/4 teaspoon of pepper in her salad dressing. How much salt and pepper did Rosalina use?

Answers

Answer:

2/4 or 1/2

Step-by-step explanation:

She used 1/2 teaspoons of salt and pepper, in her salad

Solve the system of linear equations by substitution.
x + 3y = 4
-x + 2y = 6

Answers

For my answer i got X=-2 and Y=2 Aka (-2,2)
I got the answer (-2,2)

Helpppp please?? tysm

Answers

Answer: d.

Step-by-step explanation:

Trapezoid so D!!!! Is the answer

Target sells 5 bottles of lemonade for $11. At Harris Teeter the same bottles of lemonade are 12 for $30. Which store has the lowest price? State the amount of the lowest price too

Answers

Harris teeter

Step-by-step explanation:

I am not 100% sure but anyways

target has the lowest price bc the cost for each bottle is $2.20 as opposed to Harris Teeter which is $2.50, so Harris Teeters bottle cost 30cents more than targets

In the historical account of Rome, another name for the Romans is the

Answers

Answer:

what ?

Step-by-step explanation:

What do you mean :) .

This question. Help?

Answers

Answer:

52.3 about;)

Step-by-step explanation:

52.3 is your answer

Need helpp fastt plss will give brainliest to who is correct plss helpp!!!!!!!!! It a test I need good grades PLSSSS HELPPPPP!!!!!!!!!!

Answers

Answer:

It takes 3 minutes to make each sculpture.

He used 5 balloons per sculpture.

Step-by-step explanation:

To find the minutes you would divide 96 by 32 and to find the number of balloons you would divide 160 by 32.

Answer:

Im guessing 2

Step-by-step explanation:

160 - 96 = 64

64 / 32 = 2

Im not really sure Im trying

Please answer! Very easy and will mark brainlist.

Answers

Answer:

18.57

Step-by-step explanation:

First you have to simplify the equation using cross-multiplication

You should get 7v=130

Then divide both sides by 7

You should get v=130/7

simplify that and get 18 4/7

Turn that into decimal form and you get 18.57

Answer:

18.57

Step-by-step explanation:

1. Multiply all terms by the same value to eliminate fraction denominators

v/10 = 13/7

10 x v/10 = 10 x 13/7

2. Simplify

130/7 = 18.571428571429

3. Round to the Nearest Tenth

18.57

The ratio of your monthly allowance to your friends is 2:3. If the monthly allowances total $40, how much does EACH person receive?
I'm reasking because nobody's answering and I've spent an hour trying to understand.

Answers

Answer:

Each person got 8 dollars.

Step-by-step explanation:

If there are five friends then you would divide 5 by 40 and the answer is 8.

pls dont ans if u dont know how to do it (show your work) Solve the equation. w+3 3/8=1 5/6

Answers

Answer:

w= -13/8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

w+33/8=5/2

Step 2: Subtract 33/8 from both sides.

w+33/8-33/8=5/2-33/8

w= -13/8

Please Help Me With This. TIMED.
One year ago, Lindsey deposited $250 into a savings account. Her balance is now $253. Two years ago, Jenn deposited $250 into a savings account. Her balance is now $257.50. Which account has the greater simple interest rate? Explain.

Answers

Answer:

$257.50

Step-by-step explanation:

Because it has a higher amount.

Answer:

Lindsay’s interest is $3 for one year. Using the formula for interest, I = prt, Lindsey’s money is earning at a rate of 1.2%. Jenn has earned $3.75 for one year. Her money is earning at a rate of 1.5%, which is a higher interest rate.

Step-by-step explanation:

Roy bought running shoes for $44.98. If the sales tax is 7%, how much did he pay in total?

Answers

Answer:

48.12

Step-by-step explanation:

Answer:

48.12 i think

Step-by-step explanation:

calculator.

The diameter of the circle below measures 7 cm. What is the approximate area of the circle?

THE BEST AND CORRECT ANSWER GETS BRAINLIEST

Answers

It’s A. 38! You divide the diameter in half and use the radius to find the area of the circle

Answer:

38cm squared

Step-by-step explanation:

3.14 x 7 gets you the answer A

Sophie takes out a loan of $16,500 to help pay her employees this month. The bank she takes the loan from charges her a 1.25% interest fee at the end of the month. How much will Sophie need to pay the bank back at the end of the month?

Answers

Answer: she will need to pay 13,200 by the end of the month

A function f is defined by f(x,y) = x - (xy - y). What is the value of f(8,6)?

A. -46
B. -34
C. 46
D. 50
E. 62

Answers

Answer -34 because I’ll explain it right now
-34
I know because i literally did this. yesterday

Suppose a pentagon graphed on a coordinate plane willundergo a dilation.Which of these is a true statement?

Answers

Answer:

I think its C

Step-by-step explanation:

Answer:

I will edit this as soon as you show me the statements =D

Step-by-step explanation:

Please help me on this.

Answers

Answer:

The third option. (the one where it intersects on the y line)

Step-by-step explanation:

If you solve for the system of equations, you will find that it is (0,3), so it intersects on the y line. Additionally, it is on the top because it is positive.

Jordan enters 3.4x6.8 into his calculator. He writes the digits 2312 from the display and forgets the decimal point. Where should Jordan write the decimal point? EXPLAIN!!!!!

Answers

Answer:

23.12

Step-by-step explanation:

He should write it after the 23 because 3 x 6 = 24 but we are working with decimals so that is not the full answer. The full answer is less than 24. So it is 23.12

Answer:

i need points sorry

Step-by-step explanation:

Please answer the following essay question with 5-7 sentences.
How is a chemical change different from a physical change?

Answers

Answer:

Step-by-step explanation:Physical changes only affect the physical properties, such as color, texture, and shape, of a substance. When a substance is changed physically, its chemical properties remain the same. On the other hand, a chemical change alters the chemical properties of a substance.During a physical change the elements and compounds stay as they are.While Chemical changes make new substances.

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut

What are some common factors of 25 and 30?

Answers

Answer:

1,5

Step-by-step explanation:

Some are 1 and 5

Answer:

5 and 1.

Step-by-step explanation:

5x5= 25, 5x6= 30

1x25= 25, 1x30=30

Need helpp fastt plss will give brainliest to who is correct plss helpp

Answers

Answer:

Step-by-step explanation:

Calculation is done as follows:

Number of movie posters remaining = 120 - 24 = 96

Number of band posters remaining= x  

120:100 = 96:x

x = 80  

100-x = 100 - 80 = 20

So, she should sell about 20 band posters for her to maintain the same ratio of the movie posters to the band posters.

20 POINTS!! Points that two lines pass through are given in the table. Match each point of intersection to the correct pair of lines.
(1, 1)
(1, -1)
(-4, -7)
(-5, -4)
(4, 7)
(-4, -5)

Answers

Answer:

The answers in order

(-4,-7)

(4,7)

(-4,-5)

(1,-1)

Here is the answer in a photo >>>

(credits to the other girl)

Cole took a total of 36 quizzes over the course of 4 weeks. How many weeks of school will Cole have to attend this quarter before he will have taken a total of 45 quizzes? Assume the relationship is directly proportional.

Answers

Answer: 5 weeks

Step-by-step explanation: 36 / 4 = 9. This means in 1 week he finishes 9 quizzes. 9 x 5 = 45, therefore it would take him 5 weeks to finish 45 quizzes.

It should be 5 weeks

Which expression is shown using the model below?


5(6+6)

5(6+5)

6(6+5)

6(6+10)

Answers

Answer:

6(6+5)

Step-by-step explanation:

im not entirely sure, but the light green box is 6x6 and the dark green box is 6x5 so thats how i got my answer. Sorry if its incorrect. good luck!!

6(6+5)

Would be the answer because if you count the squares it’s 6 by 6 and 5 by 6

QUICKEST AND BEST ANSWER GETS BRAINLIEST

Answers

B. or C.

hope im correct

Answer:

D

Step-by-step explanation:

The equation of the horizontal line passing through the point (-3, 8) is y = 8. O True O False​

Answers

Answer:

I am guessing that it is true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

y=8 is a horizontal line on the y axis

What is 2 1/8 in improper fraction form? *
I need help now!!!!!!

Answers

Answer:

17/8

Step-by-step explanation:

Step 1: Multiply the whole number part (2) by the denominator (8).

2 × 8 = 16

Step 2: Add the product from Step 1 (16) to the numerator (1).

16 + 1 = 17

Step 3: Write that result (17) above the denominator. So,

2 1/8

= 17/8

What is the one-hundredth term in the sequence 14, 19, 24, 29, 34…?

Answers

Rule: look at the sequence. It has the last number as 4 then 9 then for. 4 for odd numbers(odd term numbers like number 3,5 so on) so the last number of the 100 term is 9. It’s 509.

Kurt deposited money into his bank account every month. The amount of money he deposited in the first 5 months of 2014 is listed in the table.

Month Amount Deposited
(dollars)
January 1,200.32
February 985.43
March 1,200.65
April 1,987.34
May 1,000.98
The total amount of money that Kurt had deposited into his account at the end of May is ______
The total amount of money that he had deposited into his account at the end of March is _______

Answers

Answer:

that is the answer

Step-by-step explanation:

You have the answer I’m pretty sure
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