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
stepan [7]
3 years ago
8

A science teacher needs to purchase microscope for every student in her class. There are 14 boys and 17 girls. Each mocrospoe co

sts $87.50 each. How much money will she have to spend?
Mathematics
1 answer:
IRISSAK [1]3 years ago
5 0
87.50(14+17)
87.50(31)
$2,712.50
You might be interested in
Answer the question. Will give Brainliest to whoever gets it right.
suter [353]

Answer:

27 feet

Step-by-step explanation:

they go 27 feet because 15+6+6=27

3 0
3 years ago
What is the equivalent radian measure of 540°?
Aleksandr-060686 [28]

Answer: 3π

I don't see 3π in your answer choices, but I'm assuming the "3x" is supposed to be 3π.

Step-by-step explanation:

To convert from degrees to radians, you multiply by π/180.

540*\frac{\pi }{180} =3\pi

8 0
3 years ago
​It's believed that as many as 24​% of adults over 50 never graduated from high school. We wish to see if this percentage is the
luda_lava [24]

Answer:

n=438

Step-by-step explanation:

-Given the sample proportion \hat p=0.24 and the confidence level is 95%.

-The sample size can be calculated using the formula;

ME=z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

#Substitute parameters in the formula and make n the subject of the formula;

ME=z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\\\=z_{0.025}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\\\n=(\frac{z_{0.025}}{ME})^2\hat p(1-\hat p)\\\\\\=(\frac{1.96}{0.04})^2\times 0.24\times 0.76\\\\=437.94\approx 438

Hence, the desired sample size is n=438

4 0
4 years ago
Erin clocked the top speed of her remote control car at 25 meters per second. Her brother Ben clocked the top speed of his remot
exis [7]

Sorry but..I don't even know where to start. Good luck!

4 0
3 years ago
polygon B is a scaled copy of polygon A using a scaled factor of 5. polygon A's area is what fraction of polygon B's area
marishachu [46]

Answer:

1/5

Step-by-step explanation:

polygon B's area is 5 times greater than polygon A

3 0
3 years ago
Other questions:
  • When the smaller of two consecutive integers is added to fivefive times the​ larger, the result is 7777. find the integers?
    11·1 answer
  • Factor 4x2 − 4x − 24 completely
    6·1 answer
  • The number of bacteria in a petri dish is 524 and growing at a rate of 7% every month.
    10·2 answers
  • Please answers quick ,whats an inequality?
    5·2 answers
  • You purchase an item at a store and have a total of $153.60.The cashier then adds a 5% tax to your total. If you pay with two 10
    9·1 answer
  • If you deposit $1000 in a bank account paying 1.2% annual interest, how much interest will the deposits earn in 5 years if the b
    6·1 answer
  • How do I right a word problem of 12x-8=
    6·1 answer
  • Im almost done with it
    11·1 answer
  • Which expression is equivalent to 6( 8n) - 8?​
    11·2 answers
  • Help help help help help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!