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
Katyanochek1 [597]
3 years ago
8

Matemática pls ajudem

Mathematics
2 answers:
balandron [24]3 years ago
5 0

I wanna help but i dont know that langue

OlgaM077 [116]3 years ago
5 0
What language is this?
You might be interested in
On a particular day, the wind added 5 miles per hour to Alfonso's rate when he was cycling with the wind and subtracted 5 miles
sattari [20]

speed with no wind = s

speed with wind = s + 5

speed against wind = s - 5

time = t

speed = distance/time

distance = speed * time

With wind, time = t, speed = s + 5, distance = 50

50 = (s + 5)t

Against wind, time = t, speed = s - 5, distance = 30

30 = (s - 5)t

t = 30/(s - 5)

50 = (s + 5) * 30/(s - 5)

50(s - 5) = (s + 5) * 30

50s - 250 = 30s + 150

20s = 400

s = 20

Answer: 20 mph

3 0
4 years ago
You are given a problem that involves multiplying a positive number and a negative number. Which of the following are reasonable
crimeas [40]
First question:. A and D. Second question: B and C .
7 0
3 years ago
Read 2 more answers
Joe is a waiter at a local pizza parlor. He usually gets a tip from the table he waits on. The bill for one table comes to $34.
Aneli [31]
38 divided by x% equals= 
3 0
3 years ago
An experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. How man
zheka24 [161]

Answer:

43,680 ways.

Step-by-step explanation:

We have been given that an experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. We are asked to find the number of groups of 4 participants that can be chosen, assuming that the order in which the participants are chosen is irrelevant.

We will use permutations formula to solve our given problem.

^nP_r=\frac{n!}{(n-r)!}

For our given problem n=16 and r=4.

^{16}P_4=\frac{16!}{(16-4)!}

^{16}P_4=\frac{16!}{12!}=\frac{16*15*14*13*12!}{12!}=16*15*14*13=43,680

Therefore, 4 participants can be chosen in 43,680 different ways.  

6 0
4 years ago
Ms. Sanders surveyed her class about where they would like to go for the class trip. 5 students chose the history museum, 7 chos
N76 [4]

Answer:

20

Step-by-step explanation:

5 plus 7 plus 10 plus 3 = 25

25x4=100

5x4=20

20%

Another way

5/25 = 0.2

0.2 =20%

4 0
2 years ago
Other questions:
  • 1200/180 = <br><br><br><br><br> (can someone please help me I'm desperate)
    14·1 answer
  • What affct does a=2 have on the parnt function y=1/x.
    5·1 answer
  • What is the equation in slope-intercept form if a line that passes through (-2,2) and is perpendicular to graph of y=1/2x - 3
    12·1 answer
  • Best Buy had a sale on iPads last week. 16GB iPad ‘s were on sale for $50 and 64GB iPad’s were on sale for $79. The receipts fro
    11·1 answer
  • Answer the following questions. (Hint: you can enter calculations right into the answer box. For example, entering "5/2" compute
    6·1 answer
  • A loon is flying at a height of 10 feet above a lake. The lone dives into the water to catch a fish that is at a depth of 6 feet
    15·1 answer
  • I NEED THIS NOWWW Dr. Sandoval saw 1,270 patients last year. This year, the number of patients she saw was 10% higher. How many
    8·2 answers
  • what will be the distance travelled at 5 seconds. PLEASE ANSWER IT I WILL MARK BRAINLIEST WHOEVER CAN ANSWER THIS PLEASE​
    11·2 answers
  • Simplify: 3(4x – 2) + 9 + 2
    9·1 answer
  • 3. A rocket is launched vertically from the ground with an initial velocity of 64 ft/sec.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!