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
Paladinen [302]
3 years ago
10

Please help solve algebra question

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0
Let be:Speed of the wind: WSpeed of the plane in still air: P
Against the wind the plane flew:Distance: d=175 milesTime: ta=1 hour 10 minutesta=1 hour (10 minutes)*(1 hour/60 minutes)ta=1 hour + 1/6 hourta=(6+1)/6 hourta=7/6 hourSpeed against the wind: Sa=d/taSa=(175 miles) / (7/6 hour)Sa=175*(6/7) miles/hourSa=1,050/7 miles per hourSa=150 mph
(1) P-W=Sa(1) P-W=150
The return trip only took 50 minutesDistance: d=175 milesTime: tr=50 minutestr=(50 minutes)*(1 hour/60 minutes)tr=5/6 hour
Speed retur trip: Sr=d/trSr=(175 miles) / (5/6 hour)Sr=175*(6/5) miles/hourSr=1,050/5 miles per hourSr=210 mph
(2) P+W=Sr(2) P+W=210
We have a system of 2 equations and 2 unknows:(1) P-W=150(2) P+W=210
Adding the equations:P-W+P+W=150+2102P=360Solving for P:2P/2=360/2P=180
Replacing P by 180 in equation (2):(2) P+W=210180+W=210
Solving for W:180+W-180=210-180W=30
Answers:The speed of the plane in still air was 180 mphThe speed of the wind was 30 mph
You might be interested in
Find the median of the set of data: 61, 40, 65, 48, 64, 57, 64, 42, 56, 55
aliya0001 [1]
The median for the problem is 56.5
3 0
3 years ago
Read 2 more answers
Which function describes the arithmetic sequence shown?
krek1111 [17]

Answer:

f(x) 4x-1   answer: d)

Step-by-step explanation:3.7, 11, 15, 19, 23,

hello :

23-19=19-15=15-11=11-7=7-3=4.....common diference

the first term is : 3       f(x) = 3+4(x-1)  ...genral term

f(x) 4x-1    answer: d)

5 0
3 years ago
Solve for x<br><br><br> 108 degrees<br> 72 degrees<br> 18 degrees<br> 17 degrees
djverab [1.8K]

Answer:

18 degrees

Step-by-step explanation:

the figure is 90 degrees so to find the missing angle you use the the given information (72 degrees), so 90 - 72 = 18 and thats the missing angle

3 0
2 years ago
Read 2 more answers
Really need help if correct i will mark brainliest
lisov135 [29]

Answer:

11.375

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
In this net, the two triangles are right triangles. All quadrilaterals are rectangles.
andre [41]
Two quadrilateral rectangles:
1. 6x5= 30
2. 5x10= 50
Two right triangles:
1. 10x6/2= 30
2. 10x6/2= 30
Then you add them all up:
30+50+30+30= 140 sq. units
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which number is not in scientific notation? A. 11 times 10 to the 21st power? B. 5.7 times 10 to the 9th power? C. 3.1 times 10
    7·1 answer
  • Which shows a perfect square trinomial?
    6·2 answers
  • At the beginning of January, Molly had $6000 in her savings account. In February she had 25% more than she did in January, and i
    14·1 answer
  • Given the function defined in the table below, find the average rate of change, in
    12·1 answer
  • URGENT! WILL MARK BRAIN!
    14·2 answers
  • 2. A sweater comes in four sizes and eight colors.<br> How many different sweaters are possible?
    9·2 answers
  • ANSWER FAST PLEASE Alyssa read 25 pages of a new book the first day she bought it. After the first day , she read 5 pages a day
    11·1 answer
  • Which ordered pair is a solution to the inequality 3x - 4y &lt; 16 ?
    7·1 answer
  • Math work help wanted
    9·1 answer
  • Pls can u help me answer this❔​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!