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
Please help me- AND PLEASE EXPLAIN
GuDViN [60]

Answer:

A=35, B=55, and C=25

Step-by-step explanation:

Angle A and the angle next to it are linear pairs, so you can subtract 145 from 180.

if you already know Angle A, and that the other angle is 90 degress, you can add 90+35 and subtract it from 180 to get Angle B

Angle C is paired with the angle across from it (I forgot what the term is called) so it is 25 degrees.

7 0
3 years ago
A farm stand wants to sell fruit to local grocery stores in packages with baskets of apples, worth $10 apiece, and baskets of pe
Scorpion4ik [409]
The answer is B 22 apples and 28 peaches
7 0
3 years ago
2(x-3)= 2x +5 help me out please
Igoryamba

Answer:

Look Down Low

Step-by-step explanation:

2(x - 3)  =  2x + 5

Multiply out the left side:

2x - 6  =  2x + 5

Subtract 2x from both sides:

   -6  =  5

Since this is impossible, this "equation" cannot be solved.

8 0
3 years ago
Read 2 more answers
Carly left for school at 8:15.she left school at 2:45.if she arrived at 8:45,how many hours was she in the school
Ne4ueva [31]
She was in school for 6 hours.
3 0
3 years ago
If f(x)=3x^2+1 and g(x)=1-x, what is the value of (f-g)(2)?
stepladder [879]

The answer should be 14.

You just have to substitute x with the given number and finish the equation.

3 0
3 years ago
Read 2 more answers
Other questions:
  • which measure would you report to describe the diffrences between the most electricity used in 1 month and the least
    5·1 answer
  • A part of a line with endpoints on both ends is a(n):
    9·1 answer
  • Austin buys 30 cups he places 4 balls in each cup how many cups does he need
    6·2 answers
  • Which is bigger: 78 or 0.78?
    12·2 answers
  • A flying squirrel's nest is 12 feet high in a tree. From its nest, the flying squirrel glides 20 feet to reach an acorn that is
    14·1 answer
  • Make 24 with the numbers below :<br> 5, 10, .5, 1
    12·1 answer
  • Factor 21x^2 - 37x + 12
    9·1 answer
  • Find the value of x.<br> (3x +20)<br> (5x - 16)<br> 0.5<br> 74<br> 18<br> 2
    13·1 answer
  • Choose the graph below that represents the following system of inequalities: (1 point)
    12·1 answer
  • Find all the zeros of the polynomial x^4+x^3-34x^2-4x+120 if two of its zeros are 2,-2
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!