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
Elan Coil [88]
3 years ago
10

A class of 80 girls and 60 boys sponsored a car

Mathematics
2 answers:
yulyashka [42]3 years ago
5 0

Answer:

D

Step-by-step explanation:

80/100 x 40 = 32

60/100 x 30 = 18

18 + 32 = 50

50/(80+60) x 100 = 35.7

= 36

Thank you

Sliva [168]3 years ago
4 0

Answer:

36%

Step-by-step explanation:

class total: 140 students

40% of 80= 32

30% of 60=18

18+32= 50

50 divided by 140= .36 or 36 percent

You might be interested in
Paul wants a bike that cost $400. If he had saved 60% of this amount, how much had he saved.
enyata [817]
Hey!


To solve this problem, we'll first start by creating an equation.

<em>Our Created Equation :
</em>
\frac{400 x 60}{100}

Now we'll solve it step by step to find the answer.

So we should begin by multiplying the to portion of our fraction.

<em>400 x 60 = 24,000</em>

Next, we divide our answer by 100, since that is the next step to our equation.

<em>24,000 ÷ 100 = 240</em>

So, our answer is...

<em>Paul has already saved</em>  $240.00  <em>of the $400.00 he must pay for a new bike.</em>

Hope this helps!


- Lindsey Frazier ♥
4 0
3 years ago
Please help with my math question! :))
tamaranim1 [39]
Outlier is 5, -3. the cluster is in the top left quadrant.
6 0
2 years ago
Read 2 more answers
Cindy spent $15.25 on ingredients for a blueberry pie and $12.84 on ingredients for a cherry pie. Each slice of pie sells for $3
Brums [2.3K]

Answer:

61.07 dollars profit

Step-by-step explanation:

15.25 for blueberry pie =  24 slices (8 slices in a pie)

12.84 for cherry pie =  15 slices (8 slices in a pie)

24x3.50=84

15x3.50=52.5

2x12.84=25.68

3x15.25=45.75

84-45.75=34.25

52.5-25.68=26.82

8 0
3 years ago
Read 2 more answers
-6(a+8) hugyftdrijohugfcgjhbkuo7gy6tfuh
Musya8 [376]

Answer:

───▄▀▀▀▄▄▄▄▄▄▄▀▀▀▄───COPY PASTE ME AND FIGHT BOB!!!

───█▒▒░░░░░░░░░▒▒█───I am TACO I AM THE NEW WAY

────█░░█░░░░░█░░█────Join my kingdom:

─▄▄──█░░░▀█▀░░░█──▄▄─https://pad let.com/tristajm32/meow

█░░█─▀▄░░░░░░░▄▀─█░░█

Step-by-step explanation:

7 0
3 years ago
The height of a tree in feet over x years is modeled by the function f(x). f(x)=301+29e−0.5x which statements are true about the
Karo-lina-s [1.5K]
Given this equation:

f(x)=301+29^{-0.5x}

That represents t<span>he height of a tree in feet over (x) years. Let's analyze each statement according to figure 1 that shows the graph of this equation.
</span>
The tree's maximum height is limited to 30 ft.

As shown in figure below, the tree is not limited, so this statement is false.

<span>The tree is initially 2 ft tall

The tree was planted in x = 0, so evaluating the function for this value, we have:

</span>f(0)=301+29^{-0.5(0)}=301+1=302ft
<span>
<span>So, the tree is initially \boxed{302ft} tall.
</span>
Therefore this statement is false.

</span>Between the 5th and 7th years, the tree grows approximately 7 ft.
<span>
if x = 5 then:

</span>f(5)=301+29^{-0.5(5)}=301ft<span>

</span>if x = 7 then:

f(7)=301+29e^{0.5(7)}=301ft

So, between the 5th and 7th years the height of the tree remains constant
:
\Delta=f(7)-f(5)=301-301=0ft

This is also a false statement.

<span>After growing 15 ft, the tree's rate of growth decreases.</span>

It is reasonable to think that the height of this tree finally will be 301ft. Why? well, if x grows without bound, then the term 29^{-\infty} approaches zero.

Therefore this statement is also false.

Conclusion: After being planted this tree won't grow. 


4 0
3 years ago
Read 2 more answers
Other questions:
  • How do I turn this vertex form -2(x-0)^2 + 18 in to a standard form
    12·1 answer
  • A set of average city temperatures in December are normally distributed with a mean of 16.3 C and a
    8·1 answer
  • 1/5x3/4x5/7 write your answer in simplest form
    10·1 answer
  • A painter mixes gray paint by using 1 gallon of black paint for every 7 gallons of white paint. How much black paint and how muc
    13·1 answer
  • 2540 centimeters are equal to how many inches? <br><br>1 inch=2.54 cm ​
    8·2 answers
  • Sequence of transformation
    5·2 answers
  • Put the following equation of a line into slope-intercept form, simplifying all
    10·1 answer
  • Find the surface area of the cone. Round your answer to the nearest tenth.
    6·1 answer
  • What is the simpler form of<br> (2k²− k+ 3) + (5k²+ 3k +7)?
    8·1 answer
  • How many solutions does the nonlinear system of equations graphed
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!