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
maxonik [38]
3 years ago
13

Please due in 15 minutes please please!!!!!!

Mathematics
1 answer:
liraira [26]3 years ago
4 0
8 girls 12 boys = 20 total
12/20= 3/5 = .6 *100 =
60% is the first answer

34 trees (3 types) +? Scotch pines
= 50 total
50-34= 16/50*2 = 32/100=
32% scotch pines is the second answer

20 grapes 1 pear
13/20*5 = 65/100 =
65% grapes third answer

Found 20 | did not find 5 | 25 total
5/25*4= 20/100=
20% is the fourth answer
You might be interested in
The result after adding a set of numbers or algebraic expressions is called a ___.
weqwewe [10]

the result is called a sum

3 0
4 years ago
Read 2 more answers
Simplify the expression (5x^2+13x-4)-(17x^2+7x-19)+(5x-7)(3x+1)
miv72 [106K]
5x²+13x-4-17x²-7x+19+15x²+5x-21x-7=
=5x²+15x²-17x² +(13x-7x+5x-21x) -4-7+19=
=3x²-10x+8
8 0
3 years ago
Read 2 more answers
a crew of highway workers paved 2/15 mile in 20 minutes.if they continued working at the same rate,what portion of a mile wil th
icang [17]

Answer:

2/5 of a mile

Step-by-step explanation:

The easiest approach is to realise that one hour is 3 times longer than  

20 minutes. The longer the time, the more they will pave.


2/5  of a mile, in 20 minutes, how much in 60 minutes?(#)

They will pave 3 times more.

2/15 x 3/1 = 6/15 of a mile

6/15 = 2/5 of a mile

8 0
4 years ago
In an article in Marketing Science, Silk and Berndt investigate the output of advertising agencies. They describe ad agency outp
fredd [130]

Answer: (7.27%, 7.55%)

Step-by-step explanation:

As per given , we have

Sample size : n= 392

Sample mean : \overline{x}=7.41\%

\sigma=1.43\%

Critical two-tailed z-value for 95% confidence = z_{\alpha/2}=1.96

Required confidence interval would be :

7.41\%\pm (1.96)\dfrac{1.43\%}{\sqrt{392}}\\\\=7.41\%\pm 0.14\%\\\\=(7.27\%, 7.55\%)

Hence, the required 95% confidence interval for the mean percentage share of billing volume from network television for the population of all U.S. advertising agencies : (7.27%, 7.55%)

7 0
4 years ago
Jack looks at a clock tower from a distance and determines that the angle of elevation of the top of the tower is 40°. John, who
Artemon [7]
I would say 25.50 meters. Hope this helps!
6 0
4 years ago
Read 2 more answers
Other questions:
  • What is the simplified form of x plus 3 over x squared minus x minus 12 ⋅ x minus 4 over x squared minus 8x plus 16 ?
    15·1 answer
  • DAY 3 PLEASEEEE HELPPP
    13·1 answer
  • What is the domain and range of the function below?
    14·1 answer
  • Pls help how do tou dot his
    8·2 answers
  • Kevin buys a shirt for $25 and a pair of jeans for $42.50. If the sales tax is 8%, what is the total price Kevin pays for the it
    7·1 answer
  • Which equation has no solution?
    6·1 answer
  • So i forgot what 6 - 1 is
    14·2 answers
  • Identify the variable(s), set up your equation(s), and solve. Richard has an elder sister who is twice his age and a younger sis
    13·1 answer
  • Find the value of x. Round to the<br> nearest tenth.<br> 40<br> X<br> 7<br> x = [?]
    9·1 answer
  • Please help!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!