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
snow_tiger [21]
3 years ago
11

100 students are interviewed to see which of biology chemistry or physics , they prefer 30 students are girls 16 of the girls li

ke biology 9 of the boys prefer physics 2 out of the 34 who prefer physics are girls what percentage prefer biology
​
Mathematics
1 answer:
zalisa [80]3 years ago
3 0

Well, it says that 34 kids like physics and since there is 100 students, we know 34% of the kids like physics. This means 66% like biology.

You might be interested in
The set of points P(0, 3), Q(2, 0), R(4, -3) are collinear and the line has a slope of _____.
Svetllana [295]

Answer:

the line of slope of 3/2

Step-by-step explanation:

triangle slope of the median 1/2

8 0
3 years ago
24 21 is 60% of what number?
vitfil [10]

Answer:

could u explain it better

4 0
3 years ago
Read 2 more answers
A researcher is investigating a government claim that the unemployment rate is less than 5%. To test this claim, a random sample
DerKrebs [107]

Answer:

The test statistic for this hypothesis test for a proportion is z=1.90.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that the unemployment rate is less than 5%.

Then, the null and alternative hypothesis are:

H_0: \pi=0.05\\\\H_a:\pi

The sample has a size n=1500.

The sample proportion is p=0.061.

p=X/n=92/1500=0.061

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.05*0.95}{1500}}\\\\\\ \sigma_p=\sqrt{0.000032}=0.0056

Then, we can calculate the z-statistic as:

z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.061-0.05-0.5/1500}{0.0056}=\dfrac{0.0107}{0.0056}=1.90

8 0
4 years ago
Negative 4.2x+31.5=negative 65.1
Rasek [7]
It is a linear simple equation for one unknown, lets solve it!
-4.2x + 31.5 = -65.1
we can easily get rid of decimals if we multiply the whole equation times 10:
<span>-42x + 315 = -651
</span>-42x = -651 - 315 = -966
x = 966/42
x = 23
that is the solution
7 0
3 years ago
Read 2 more answers
an airplane is 180 feet long. blake makes a scale model of the airplane 1:45 of its actual size. how long is the airplane
LenaWriter [7]

Answer: 4 feet

Step-by-step explanation:

An airplane is 180 feet long.

Blake makes a scale model of the airplane which is 1:45 of its actual size. To find the length of the airplane model goes thus:

= 1/45 × 180

= 4 feet

The model is 4 feet

7 0
3 years ago
Other questions:
  • What is the addtive inverse of (-25)​
    13·2 answers
  • Convert 220 from degrees to radians
    12·2 answers
  • 9e^2f=49 solve for e. please and thank you!
    10·1 answer
  • A rectangle with a perimeter of 40m is 2m7, longer than it is wide. Determine the dimensions of the rectangle.
    11·1 answer
  • At a music store, 8 CDs cost $32. How much 15 CDs cost at this store?
    6·2 answers
  • If you're good at angles of elevation pls help meeee
    11·2 answers
  • A sporting goods store pays $180 for a rubber raft. The percent of markup is 40%. Find the raft’s selling price. $108 $450 $252
    11·2 answers
  • A local supermarket has sodas on sale this week. If you buy fewer than three packs of soda, then each pack costs $3.99. If you b
    9·1 answer
  • What is the answer to this question
    7·1 answer
  • Vertie rode 3.5 kilometers on a bike. His friend Valene rode 2 000
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!