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
taurus [48]
3 years ago
8

Write and solve a system of equations for this question please

Mathematics
1 answer:
andre [41]3 years ago
6 0
Let b and s be the velocity of the boat and stream respectively....

3(b-s)=27

b-s=9

b=9+s  we will use this in the second equation....

2(b+s)=30

b+s=15, now use b found above in this to get:

9+s+s=15

2s+9=15

2s=6

s=3, and since from earlier b-s=9, b=9+s so

b=12

So the speed of the boat is 12mph and the stream is 3 mph
You might be interested in
A table has an area of 12 and a perimeter of 16 ft. What are the dimensions of the table?
Mandarinka [93]

Answer:

Length 6,  Width 2

Step-by-step explanation:

6x2 = 12 = Area

6+6+2+2= 16 = Perimeter

4 0
3 years ago
Read 2 more answers
ASAP will give the brainliest
Contact [7]

Answer:

wait can u send the screen shot again it wont load.

Step-by-step explanation:

7 0
2 years ago
What is <br> 7/3(x-1)+1=3(x+1
madreJ [45]

Answer:

x = -13/2 = -6.500

Step-by-step explanation:

Just use tiger algebra solver that is what I use it is much easier.

3 0
3 years ago
Read 2 more answers
What is -32 x 3? thanx
mars1129 [50]

Answer:

The answer is -96

Step-by-step explanation:

The answer is -96

3 0
2 years ago
Write 0.0000000642 in scientific notation.
GuDViN [60]

Step-by-step explanation:

6.42 \times 10^8

By calculator

4 0
3 years ago
Read 2 more answers
Other questions:
  • Given angle A B C , in which Line AD bisects angle BAC. If m angle B=64 and m angle C =42, determine m angle BAD.
    14·1 answer
  • If X=60, Y=25, and Z=65, what is the tangent of
    15·2 answers
  • How do yall figure out how many people there are in a pie chart if it dont say and all it has is percents
    13·1 answer
  • The graph of f(x) was vertically translated down by a value of k to get the function g(x) = 5x + k. What is the value of k? −7 −
    9·1 answer
  • What is 50% of 42.88
    11·2 answers
  • If anyone knows this I will give them brainiest
    10·1 answer
  • Can anybody help me please hurry this is due
    11·1 answer
  • PLEASE HELP!!!!!!!!
    15·1 answer
  • I need help ASAP please. If answers right I’ll give brainey
    10·1 answer
  • Please help me on question two
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!