A hot air balloon leaves the ground and ascends at a rate of 5 feet per minute for 4 minutes.

Then descends at a rate of 2 feet per minute for 7 minutes. How far above the ground is the

balloon now?

Answers

Answer 1

When the balloon is on the ground, it is at point 0. It starts to go up at 5 f/m for a time of 4 minutes. So we will multiply 5 by 4 to get 20. At this point, the balloon is 20 feet off the ground. However, we now know that the balloon descends at 2 f/m at a time of 7 minutes. So we must multiply 2 by 7 to get 14. So we know it was at 20, and then it went down by 14.

20 - 14 = 6 feet

This means that the balloon is now 6 feet above the ground.

I hope I've helped! :)


Related Questions

The sum of the interior angles in a polygon is 15,480°. Calculate the number of sides in the regular polygon.

Answers

137 is the answer to ur problem

What is the slope of the line passing through the points (−3, 4) and (2, −1)?

3/5 this is a fraction by the way

1

−1

−53

Answers

[tex](x_1,y_1) = (-3,4),~~ (x_2,y_2) = (2,-1)\\\\\text{Slope,}~ m = \dfrac{y_2 - y_1}{x_2 - x_1} =\dfrac{-1-4}{2+3} = \dfrac{-5}5 = -1[/tex]

A
Plz help!!!!!! !!!!!!!!!!!

Answers

Answer:

R is at the ordered pair (4, -2)

Step-by-step explanation:

ab+4a-3b-12 = (b+4)(_____)

Answers

ab+4a-3b-12 = (b+4)(a-3)

Help ASAP please i will mark brainliest who finishes first
pls be nice and neat
dont send links you CAN send photos of your answers
but i prefer typing your answers down thank you so much

Answers

Answer:

1-a) 78+x+16+x+24=180°

118+2x=180

2x=62

so x=31

Step-by-step explanation:

thats a

Answer:

1a) x = 31

1b) x = 12

2) angle A = 60 degrees

3) x = 40 degrees

Step-by-step explanation:

Can someone pls help me pls!

Answers

Answer:

refer to the picture attached for steps

Indices Home Learning
Simplify the following, leaving your answers in index notation.
1. (39)
2. Zf x 9f
38
3. 124 x 1210
4. (6m)
5. 252-3
6. 42g? = 7g?
7. 39 x 36
35
8. 116 x 116
112 x 11
Solve the following.
9. 7-2
10. 3-3

Answers

Answer:

We know that,

[tex](a^{x}) ^{y} =a^{xy}[/tex]

[tex]a^{x} *a^{y} =a^{x+y}[/tex]

[tex]\frac{a^{x} }{a^{y} } =a^{x-y}[/tex]

Let's solve now.

1) [tex](3^{8})^{4} =3^{32}[/tex]

2)  [tex]7f^{3} * 9f^{9} =63f^{12}[/tex]

3) [tex]12^{4} *12^{10} =12^{14}[/tex]

4) [tex](6m^{5} )^{3} =6m^{15}[/tex]

5)  [tex]\frac{2^{5} }{2^{-3} } =2^{8}[/tex]

6)  [tex]\frac{42g^{7} }{7g^{2} } =6g^{5}[/tex]

7)  [tex]\frac{3^{9}*3^{6} }{3^{5} } =\frac{3^{15} }{3^{5} } =3^{10}[/tex]

8)  [tex]\frac{11^{6}*11^6 }{11^2*11^3} =\frac{11^{12}}{11^5} =11^7[/tex]

9) [tex]7^{-2} =\frac{1}{7^2} =\frac{1}{49}[/tex]

10) [tex]3^{-3} =\frac{1}{3^3} =\frac{1}{27}[/tex]

Hope this helps you.

Let me know if you have any other  questions :-)

Determine the corresponding general form of each of the following vertex form

1. y = (x– 1)2

A. y = x2+ x + 1
B. y = x2 – 2x – 1
C. y = x2 – 2x + 1

2. y = (x + 4)2– 5

A. y = x2+ 8x – 11
B. y = x2+ 8x – 21
C. y = x2+ 8x + 21

3. y = -(x + 9)2– 10

A. y = -x2– 18x + 91
B. y = -x2– 18x – 91
C. y = -x2– 18x – 71

4. y = 3(x + 2)2– 18

A. y = 3x2+ 12x – 6
B. y = 3x2+ 12x + 6
C. y = 3x2+ 12x – 14

5. y = -2(x + 1)2– 16

A. y = -2x2– 4x – 18
B. y = -2x2– 4x – 2
C. y = -2x2– 4x – 14

6. y = 5(x + 5)2

A. y = 5x2+ 50x + 125
B. y = 5x2+ 50x + 25
C. y = 5x2+ 25x + 125

7. y =1/2(x + 8)2– 8

A. y = 1/2x2 + 8x + 24
B. y= 1/2x + 8x – 40
C. y = 1/2x2 + 16x + 24

8. y = (x + 3/2)2 + 3/4

A. y = x2+ 3x + 2
B. y = x2 + 6/4x + 12/16
C. y = x2 + 3x + 3

9. y = 2(x + 8)2– 5x

A. y = 2x2 + 32x + 59
B. y = 2x2 + 27x + 128
C. y = 2x2+ 37x + 64

10. y = -5(x – 4)2+ 15
A. y = -5x2+ 40x – 65
B. y = -5x2 – 40x – 65
C. y = -5x2+ 40x + 65​​

Answers

Answer:

Step-by-step explanation:

(a + b)² =a² + 2ab + b²

(a -b)² = a² - 2ab + b²

1) y = (x -1)²

 y= x² -  2*x*1 + 1

y = x² - 2x + 1    

Ans: C

2)y = (x +4)² + 5

y = x² +2*x*4 + 4² + 5

  = x² + 8x + 16 + 5

y = x² + 8x + 21

C

3) y = -(x + 9)²- 10

y = - [x² + 18x + 81] - 10

= -x² - 18x - 81 - 10

y =-x² - 18x - 91

B

4) y = 3(x + 2)² - 18

y =3 [x² + 4x + 4] - 18

y =  3x² + 12x  + 12 - 18

y =3x²  + 12x - 6

A

5) y = -2(x + 1)² - 16

       = -2[x² + 2x + 1] -16

       = -2x² - 4x - 2 - 16

     y = -2x² - 4x -  18

A

6) y = 5(x + 5)²

        =5[x²+ 10x + 25]

y = 5x² +50x + 125

A

7)y = (1/2)(x + 8)² - 8

  y = (1/2) (x² + 16x + 64) - 8

[tex]y = \dfrac{1}{2}*x^{2}+ \dfrac{1}{2}*16x + \dfrac{1}{2}*64 -8\\\\\\y =\dfrac{1}{2}x^{2}+8x +32 - 8\\\\\\y=\dfrac{1}{2}x^{2} +8x + 24[/tex]

A

8) y = (x + 3/2)² + 3/4

[tex]y = x^{2} +2*x*\dfrac{3}{2}+\dfrac{9}{4}+\dfrac{3}{4}\\\\y=x^{2}+3x+\dfrac{12}{4}\\\\\\y=x^{2}+3x + 3[/tex]

C

9) y = 2[x² + 16x + 64] - 5x

y = 2x² + 32x + 64 - 5x

y =2x² + 27x + 6

9 4/5÷3 1/2 as a fraction

Answers

Answer:

As an improper fraction, the answer is 14/5, and as a mixed fraction, the answer is 2 4/5.

Step-by-step explanation:

Brainliest Please!

Write the slope- intercept form of the equation

Answers

y=-3/4x+1

that’s the answer
bye bye

Four points are P(0,4), Q(0,3), R(2,0), S(0,5). Which three of them are collinear?​

Answers

Answer: P, Q and S

In other words, everything but point R.

============================================================

Explanation:

The term "collinear" means "points that fall on the same straight line". Any two points are always guaranteed to be collinear; however the same can't be said for any 3 random points.

In this case, points P, Q and S are all on the vertical y axis which is why they are collinear.

The graph is shown below.

x3+y3+z3=k What does this equation mean please?

Answers

Answer:

Sum of cubes problem

Step-by-step explanation:

The equation x3+y3+z3=k is sum of cubes problem. While seemingly straightforward, the equation becomes exponentially difficult to solve when framed as a "Diophantine equation" a problem that stipulates that, for any value of k, the values for x, y, and z must each be whole numbers.

Answer:

it means x to the third power, plus y to the third power, plus z to the third power, equals some number (k).

Step-by-step explanation:

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Answers

q is a number other than 3

If the price of a particular chocolate bar is increased by 40%, and it used to be $2, what is the new price after the increase?

Answers

Answer:

6$

Step-by-step explanation:

2+4=6

20%+40%=60%

The new price after the increase is $2.8 .

What is percent increase?

Percentage increase is the difference between the final value and the initial value, expressed in the form of a percentage. In other words, it is the difference between the final value and the initial value which is divided by the initial value and then multiplied by 100.

According to the question

The price of chocolate bar = $2

The price of a particular chocolate bar is increased by 40%,

i.e

The percent increase in the price of chocolate bar = 40%

Now,

increase prize :

= [tex]2*\frac{40}{100}[/tex]

= $0.8  

The new price after the increase

= $2.8

Hence, the new price after the increase is $2.8 .

To know more about  percent increase here:

https://brainly.com/question/13533684

#SPJ2

Write 49 as a product of primes

Answers

Answer:

7×7 = 49

Step-by-step explanation:

7 is a prime number. 7×7= 49 (product of primes)

7 x 7, 1 x 49 that is the best answer

HELP QUICKLY!!! How can you use a set of steps to divide whole numbers? Explain.

Answers

Answer:

https://youtu.be/4yp5v64XuRc

Step-by-step explanation:

This is a very good video on to do it, it's hard to explain just typing it on here. I'm sorry.

Answer: 131

Step-by-step explanation:

4. Solve the equation.
5n + 1
1
8
2
n=
(type the fraction as a/b with no spaces)

Answers

Answer:

=1187n

Step-by-step explanation:

5n+1182n=?

=1187n

If
x
=
2
and
y
=
6
, evaluate the following expression:
3
(
3
y

4
x
)

Answers

The answer is 30. You have the values of x and y so all you have to do is substitute them into the equation 3(18-8) 18-8=10 3(10) 3x10=30

Question 1 of 10
If f(x) = 4x - 12, what is f(2)?
A. -20
ОО O
B. 8
C. -4
O
D. 4

Answers

Answer:

C -4

Step-by-step explanation:

f(2)= 4(2) - 12

f(2) = -4

the following are polynomials EXPECT

Answers

Answer:

where the numbers at???

Step-by-step explanation:

what's the slope and y-intercept for -30+10y=-2x ?

Answers

Answer:

XDDDDDDDDDDDDDDDDDDDDDDDDDD

Step-by-step explanation:

LOL

PLS HELP!!
IM GIVING BRAINLIEST!!!
No stealing points, no links, only correct answers!!!!!

Answers

The answer is D

I know because I compared the graph of f(x) to the graph of the equation that answer D gave. What I got is shown in the image. (Blue line is g(x) and red line is f(x))

Please solve this quickly.

Answers

the answers are 6ft & 4ft

Aaden wants to get a subscription to an online library. There are two subscription options, one of which charges a fixed 96 dollar annual fee and the other which charges 3 dollars per book he borrows.
Here's a graph that shows a system of equations for this scenario where x is the number of books Aaden borrows and y is the total cost of the subscription.
A graph with two lines and a point. Line A is labeled y equals 96. Line B is labeled y equals 3 times x. Point S is below line B and above line A.
What does point SSS represent in this context?
Choose 1 answer:

(Choice A)
A
A number of books and their cost using the subscription that charges per book

(Choice B)
B
A number of books and their cost using the subscription with the annual fee

(Choice C)
C
A number of books and their cost where both subscriptions cost the same

(Choice D)
D
A number of books and their cost that is not possible with either subscription

I sent a screen shot of the graph

Answers

Answer:

A

Step-by-step explanation:

A number of books and their cost where the subscription with the annual fee costs less. hope it helps and take care ✌

Point S represents the number of books and their cost using the subscription that charges per book

Option A is the correct answer.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

Based on the given graph, point S represents the number of books and their cost using the subscription that charges per book (Option A).

This is because point S is located below line B, which represents the total cost of the subscription with a variable cost per book, and above line A, which represents the total cost of the subscription with a fixed annual fee.

Therefore,

Point S represents a combination of a certain number of books borrowed and the corresponding total cost of the subscription using the variable cost per book option.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

A teacher needs 35 model rockets for his students. Model rockets are sold in boxes of 3, boxes of 5, and boxes of 7. Which boxes could the teacher buy so he has no leftover rockets?​

Answers

Boxes of 5 or boxes of 7 because 5x7=35 and 7x5=35

Dan earns £7.90 per hour. How much will he earn for 6 hours work?

Answers

Answer:

$47.4

Step-by-step explanation:

Answer:

Step-by-step explanation:

The earning will increase for 6 hours. So, we have to multiply 7.90 by 6

Earnings after 6 hours =  6 * 7.90 = £  47.40

What is the measure of

Answers

Answer:

∠ ABC = 108°

Step-by-step explanation:

The 2 given angles are vertically opposite and are congruent , that is

4x + 8 = 3x + 33 ( subtract 3x from both sides )

x + 8 = 33 ( subtract 8 from both sides )

x = 25

Then

∠ ABC = 3x + 33 = 3(25) + 33 = 75 + 33 = 108°

What is the equation of the line from the graph?​

Answers

Answer:

y=3

Step-by-step explanation:

All points have the same y coordinate. Or

A line parallel to the x axis has slope 0, so it's y= 0x +3 that becomes y=3

Answer: Y=3

Step-by-step explanation:

Use the following function rule to find f(2).

f(x) = 2^x

f(2) =

Answers

Answer:

4

Step-by-step explanation:

4

PLEASE MARK ME AS BRAINLIST

PLEASE HELp !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

c

Step-by-step explanation:

you have to divide.....hope this helps!

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