1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
umka21 [38]
3 years ago
7

One minute after it is released, a hot-air balloon rises 120 feet. In each succeeding minute, the balloon rises only 60% as far

as it rose in the previous minute. How far will the balloon rise in the fourth minute? Question 11 options: 25.92 ft 121.8 ft 15.552 ft 0.216 ft
Mathematics
2 answers:
MArishka [77]3 years ago
7 0

Answer:

25.92 feet

Step-by-step explanation:

In the first minute, the hot air balloon rises 120 feet.

And it is given that, the balloon rises in a minute only 60% of the height it rose in the previous minute.  

Therefore, in the second minute, the balloon rises by (120×0.6) =72 feet

And in the third minute, the balloon rises by (72×0.6) =43.2 feet

Hence, in the fourth minute, the balloon rises by (43.2 ×0.6) =25.92 feet (Answer)

Bond [772]3 years ago
7 0

Answer:

25.92 i took the test

Step-by-step explanation:

You might be interested in
40 points, please help with all of them
Kitty [74]

Answer:

\large\boxed{Q1.\ \text{2 times greater}}\\\\\boxed{Q2.\ J. 3}\\\\\boxed{Q3.\ B. -\dfrac{4}{5}}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

m - slope

b - y-intercept

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

Q1.

We have the equation of a line <em>p </em>in the standard form

4x-3y=7

Convert to the slope-intercept form:

4x-3y=7               <em>subtract 3x from both sides</em>

-3y=-4x+7              <em>divide both sides by (-3)</em>

y=\dfrac{4}{3}x-\dfrac{7}{3}

The slope m_1=\dfrac{4}{3}

From the table we have the points (4, 3) and (7, 5). Calculate the slope of line <em>q</em>:

m_2=\dfrac{5-3}{7-4}=\dfrac{2}{3}

Divide the slope of <em>p</em> by the slope of <em>q</em>:

\dfrac{4}{3}:\dfrac{2}{3}=\dfrac{4}{3}\cdot\dfrac{3}{2}=2

Q2.

Parallel line have the same slope. Therefore, if we have the equation of the line in the slope-intercept form, then we have the slope:

y=3x+2\to m=3

Q3.

Parallel line have the same slope.

Calculate the slope from given points (-11, 5) and (-6, 1):

y=\dfrac{1-5}{-6-(-11)}=\dfrac{-4}{-6+11}=\dfrac{-4}{5}=-\dfrac{4}{5}

6 0
3 years ago
Write an equation perpendicular to 4x + 8y = 3 and contain the point (5,7) in slope-intercept form
dimaraw [331]

Answer:

y=2x-3

Step-by-step explanation:  

The slope-intercept form of the original equation would be y=3/8−x/2

Therefore, the slope of the perpendicular line would be m=2

Then, the y-intercept would be 7=(2)x(5)+a

A=-3

Answer:

y=2x+3

6 0
3 years ago
12s+ 3p =b <br><br><br> There’s the question and I need help understanding it
yaroslaw [1]

Answer:

Step-by-step explanation:

8 0
3 years ago
Given $dc = 7$, $cb = 8$, $ab = \frac{1}{4}ad$, and $ed = \frac{4}{5}ad$, find $fc$. Express your answer as a decimal.
Pachacha [2.7K]

A ↔ B ↔ C ↔ D ↔ E ↔ F

 \frac{1}{4} AD      8      7      \frac{4}{5} AD   ???

AB + BC + CD = AD   <em>segment addition postulate</em>

\frac{1}{4} AD   +   8   +   7   = AD

\frac{1}{4} AD   +       15        = AD

AD         + 60    = 4AD

                  60    = 3AD

                  20    = AD

AB =  \frac{1}{4} AD    =  \frac{1}{4}(20)    = 5

DE =  \frac{4}{5}AD   =  \frac{4}{5}(5)    = 4

CD + DE + EF = CF   <em>segment addition postulate</em>

7   +   4   + EF  = CF

     11        + EF  = CF

Answer: 11 + EF

Note: You did not provide any info about EF.  If you have additional information that you did not type in, calculate EF and add it to 11 to find the length of CF.

7 0
3 years ago
Read 2 more answers
You leave a 20% tip on your $70 dinner bill. How much was the tip
jonny [76]

\frac{20}{100}  \times70 =  \frac{1}{5}   \times 70 \\ = 14
hey hope this helps
5 0
2 years ago
Other questions:
  • 10 pens cost £6.50.<br> Find the cost of 4 pens
    10·1 answer
  • If a and b are the zeroes of the polynomial, x^2-11x +30, then the value of a3 + b3 =
    13·1 answer
  • Calculate the area of a circle with diameter of 6cm
    11·1 answer
  • Solve the inequality. y/-6 &gt; 10 .<br> a. y -60<br> c. y &gt; 4<br> d. y
    13·2 answers
  • You are buying balloons for a party. A small balloon costs ​$2. A large balloon costs ​$3. Write an algebraic expression for the
    13·2 answers
  • What is probability? i know its just that i don't quite understand it.
    9·1 answer
  • When a grizzly bear hibernates, its heart rate drops to 10 beats per minute, which is 20% of its normal value. What is a grizzly
    14·2 answers
  • HELP MEH PLZZZZZZZZZZ
    8·2 answers
  • If each of the cubes in a Rubik's Cube represented 1 cubic inch, what would be the volume of the Rubik's Cube?
    7·1 answer
  • What is the radius of the circle?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!