Given: -4 - (-7), use this expression and the idea of a balloon model to describe what happens to the hot air balloon.



a. Where does the balloon start?



b. Do you add or subtract something from the balloon?



c. What do you add or subtract from the balloon?



d. Where does the balloon end up?

Answers

Answer 1

Answer:

Step-by-step explanation:

-4 - (-7) = -4+7=3

For a. the balloon starts at -4

for B. your adding something to the balloon

For c. your adding 7 to -4

for D. the balloon ends up and 3


Related Questions

PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

[tex](\frac{x1 + x2}{2}, \frac{y1+y2}{2}[/tex])

Step-by-step explanation:

What is the value of x?
7.5/x= 30/16​

Answers

Answer:

4

Step-by-step explanation:

I divided 30/16 and got 1.875, then I knew that 7.5 would have to have the same answer. I did a process of elimination by dividing 7.5 by numbers at random and finally divided by 4 and got the answer. Another way to get the answer would be to cross multiply the equation.

x=4

7.5/4=30/16
120=30x
4=x

which of the ordered pairs is a solution to the system of inequalities?

Answers

Y>5 which of the orders pairs is a solution to the system of inequality

In the middle school debate club, 40% of the members are in sixth grade. If there are 12 sixth graders in the debate club, how many total members are there?

Answers

Answer is definitely this
Answer=30

Answer 30

Step-by-step explanation:

I Just had a Test and it asked me that and I got an 100

In the past month, Boris rented 5 video games and I DVD. The rental price for each video game was $3.30. The rental price for the DVD was $4.70. What is the
total amount that Boris spent on video game and DVD rentals in the past. First person to answer correctly will be marked as brainliest ;)

Answers

Answer:

$21.2

Step-by-step explanation:

3.30*5+4.70*1=21.2

Who can access your credit report?
a friends
b. employers
c. neighbors
d. teachers
Please select the best answer from the choices provided.
Ο Α
С В
ОС
D

Answers

This answer would be B

Answer:

B) employers

Step-by-step explanation:

EDGE 2021

What is the scale factor and center of dilation?

Answers

the answer to the question is m

what is (8 + 56) ÷ 4 + 3 2?

Answers

um is the end a 3 and 2 or 32 or 3*2?

Answer:

the answer to your question is 48

Just answer number 1
M<7=30 ,m<2 ?

Answers

Answer:

Step-by-step explanation:

1). ∠7 ≅ ∠ 2 (alternate exterior)

m∠7 = m∠2 = 30°

2). ∠4 and ∠1 are supplementary angles

m∠1 = 180° - 72° = 108°


The selling price of lumber at Home Depot is $4,000, percent markup on cost is 30%. Calculate the actual cost. (Round your answer
to the nearest cent.)

Answers

Step-by-step explanation:

Selling Price=$4000

Profit Percent=30%

Cost Price;

[tex] \frac{100}{100 + pp} \times 4000 [/tex]

[tex] \frac{100}{100 + 30} \times4000 [/tex]

[tex] \frac{100}{130} \times 4000 [/tex]

[tex] \frac{10}{13} \times 4000[/tex]

[tex] \frac{40000}{13} [/tex]

$3,076.923

=$3,077.000

I am not really Good at rounding forgive me Confirm from someone please.

36% of what is 180? The answer is

Answers

Answer:

not 36 but 64.8

Step-by-step explanation:

filler filler filler filler

Answer:20%

Step-by-step explanation:

Convert fraction (ratio) 36 / 180 Answer: 20%

What is the length to XY? Enter only the number as an integer or decimal.

Answers

Answer:

11.25

Step-by-step explanation:

it is a dialation of 2.25:

12 x 2.25 = 27

and

8 x 2.25 = 18

so...

5 x 2.25 =

11.25

A picture is 3 in. wide by 5 in. high was enlarged so that the width was 15 inches. How high is the enlarged picture?

Answers

Answer:

25

Step-by-step explanation:

trust me

PLEASE ANSWER THESE I'M NOT SURE HOW TO DO IT TYSMMMMM

Answers

Answer:

your answer is 234

Step-by-step explanation:

The total degree inside the triangle is 360.

Add 104 and 22 to gt 126, and subtract from 360 to get the angle value of x, which is 234 degrees.

Put these rational numbers in ascending order: 1/2, 55%, 1/3, 0.52
O 1/2, 55%, 1/3, 0.52
O 55%, 0.52, 1/2, 1/3
O 1/3, 1/2, 0.52, 55%
O 1/3, 0.52, 1/2, 55%

Answers

1/3, 1/2, .52, 55%
I believe that’s the correct answer

Answer:

1/3, 1/2, .52, 55%

Step-by-step explanation:

A rectangle has a perimeter of 32 in. Find the length and width of the rectangle under which the area is the largest.

a. Let the width to be x and the length to be y , then the quantity to be maximized is (expressed as a function of both x and y) A=_____
b. The condition that x and y must satisfy is y=______

Answers

Answer:

Length of the rectangle is 8 in and the breadth is 8 in.

a. [tex]A=xy[/tex]

b. [tex]y=16-x[/tex]

Step-by-step explanation:

Length = x

Breadth = y

Area is given by [tex]A=xy[/tex]

Perimeter of rectangle is given by

[tex]2(x+y)=32\\\Rightarrow x+y=16\\\Rightarrow y=16-x[/tex]

The condition that x and must satisfy is [tex]y=16-x[/tex]

So, area is

[tex]A(x)=x(16-x)\\\Rightarrow A(x)=16x-x^2[/tex]

Differentiating with respect to x we get

[tex]A'(x)=16-2x[/tex]

Equating with zero

[tex]0=16-2x\\\Rightarrow x=\dfrac{16}{2}\\\Rightarrow x=8[/tex]

Double derivative of A(x)

[tex]A''(x)=-2[/tex]

So [tex]A''(x)<0[/tex] which means [tex]A(x)[/tex] is maximum at [tex]x = 8[/tex]

[tex]y=16-x=16-8\\\Rightarrow y=8[/tex]

So length of the rectangle is 8 in and the breadth is 8 in.

Louise Bourgeois obtained a $3,200 installment loan for a marble floor in her foyer. The
annual percentage rate is 9%. She must repay the loan in 24 months. Find the (a) monthly
payment using the formula, (b) total amount repaid, and (c) the finance charge.

Answers

(a) 157.33 (b)3776.00 (c) 576.00

A veterinarian treated 7 dogs this morning. The list below gives the weights (in pounds) of each dog. , 6, 46, 21, 9, 21, 5143 Find the range of the data set.

Answers

Answer:

5137

Step-by-step explanation:

roger is at the bakery. he is thinking of buying 1 ¾ lb of rainbow cookies. rainbow cookies cost $11.50 per pound. how much would the cookies cost?

Answers

Answer:

The cookies would cost $20.125

Step-by-step explanation:

You would mulitply 1 3/4 by 11.50 to get your answer

Answer:

Step-by-step explanation:

11.50 a pound and he buys 1 3/4 a pound.

11.50*1.75= $20.125 or $20.13 if you round.

Part B
Does this curved line represent a function? if not at what points does it fall the vertical line test?

Answers

Answer:

This graph does not represent a function. Two points where it fails the vertical line test are (0, 0) and (0, 1).

Step-by-step explanation:

This is the exact answer edumentum gave me. be careful, i got this wrong.

LET ME KNOW IF I GOT THEM ALL RIGHT PLS

Answers

Answer:

I think so

Step-by-step explanation:

It’s 0 because they dove down and got it

the table below shows different possibilites for the number of games a team would need to win to maintain a certain percentage of wins

Answers

Answer:

here hope this helps please mark brainly

Step-by-step explanation:

Please help me I don’t get this Write the equation of the line that is parallel to y=3x-2 and goes through the points (-4,2)

Answers

Alright so answer is y=3x+14

Since you need to find a PARALLEL line to y=3x-2, you already know that the incline is 3x because otherwise the two lines would intersect somewhere.

So for your new equation you now have y=3x+b, so you only need to find b. To do so you’ll need to replace all other variables by numbers with the point that is given and then isolate b.

You can do so with the point that is given to you (-4, 2). You replace y by 2 since the point is (x,y) and replace x by -4.

You now have
2=3(-4)+b
2=-12+b
2+12=b
14=b

You now have your equation: y=3x+14

Mrs. Frazier had 95 inches of ribbon. She gave 14.4 inches to Sara and 27.8 inches to Mary. If she divides the remainder between Jenny and Susie, how much will each girl receive? pls help

Answers

Answer:

26.4

Step-by-step explanation:

95-14.4-27.8=52.8

52.8/2=26.4

Hope I helped!

Please mark Brainliest!!!

Q4: Write the equation in slope-intercept form of the line that is perpendicular to
the graph of each equation and passes through the given point.
y = -5x + 1; (2, -1)

Answers

Answer:

5y  = x + 11

Step-by-step explanation:

Given parameters:

  Equation of the line ;

           y  = -5x + 1

  Coordinates = (2, -1)

Find the equation of a line perpendicular;

Solution:

A line perpendicular to  y  = -5x + 1  will have slope that is a negative inverse of the given one.

Equation of a straight line is expressed as;

           y  = mx + c

y and x are the coordinates

m is the slope

c is the y-intercept

        So, the slope of the new line perpendicular is [tex]\frac{1}{5}[/tex] ;

Now let us find the y-intercept of the new line;

   x = -1 and y = 2

      2  = [tex]\frac{1}{5}[/tex] x (-1) + c

           c  = 2 + [tex]\frac{1}{5}[/tex]   = [tex]\frac{11}{5}[/tex]  

The equation of the new line is;

          y  =  [tex]\frac{1}{5}[/tex]x +  [tex]\frac{11}{5}[/tex]  

or multiply through by 5;

        5y  = x + 11

Henry wrote a total of 12 pages over 4 hours. How many hours will Henry have to spend writing this week in order to have written a total of 15 pages? Assume the relationship is directly proportional.

Answers

Answer:

5 hours.

Step-by-step explanation:

12 ÷ 4 = 3. 3 pages an hour, which would mean 5 hours to write a total of 15 pages.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Heelllllppppppppp me please in neeeeed

Answers

1 is b, 2 is d, 3 is e, 4 is c, 5 is a

You buy a book for $12 and a CD for $6. You hand a sales cleck a $20. How much change should you get back?

Answers

Answer:

20-12-6=2

Step-by-step explanation:

why is this in college math bruh

Answer:

You should get $2 in change

Step-by-step explanation:

PLEASE HELP ASAP I WILL GIVE BRAILY AND 25 POINTS... write an expression equivalent to 4x + 12 using the distributive property

Answers

Answer:4x + 12 = 2 ( 2x + 6)

 Step-by-step explanation:

Given: AB ∩ GF = O, E ∈ interior of ∠GOB, H ∈ interior of ∠AOF. Without changing the picture indicate:

Answers

Answer:

Step-by-step explanation:

Given that

AB n GF = O

E ∈ ∠GOB

H ∈ ∠AOF

The we can say, using similar angles or triangles, that

BF = AG

EG = AH

BG = FA

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