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
vivado [14]
3 years ago
6

Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of

51 wheels. Can you tell Mongoose McHuffy how many bicycles and tricycles he has?
Mathematics
1 answer:
olasank [31]3 years ago
5 0

Answer:

12 bikes

9 tricycles

Step-by-step explanation:

x+y=21

2x+3y=51

x=-y+21

2(-y+21)+3y=51

-2y+42+3y=51

y+42=51

y=9

x=12

You might be interested in
Part A
Simora [160]
I forgot how to do this in middle school_
3 0
3 years ago
Hello pls help me answer this correctly!!
anygoal [31]

Answer:

A - 23

B - Finn and 16

Step-by-step explanation:

Counting each box until you get to C gives you 23 and 16 from points A and B

3 0
2 years ago
PLEASE HELP WILL MARK BRAINLIEST IF CORRECT
aksik [14]

Answer:

I think 3

Step-by-step explanation:

i think 3

for real this time

3 0
2 years ago
There were 576 bottles of water at the snack shop. People bought 469 bottles of water. How many bottles of water are at the snac
MissTica

Answer:

107

Step-by-step explanation:

576-469=107

3 0
3 years ago
Read 2 more answers
Find sin(2x), cos(2x), and tan(2x) from the given information.<br> tan(x) = − 1/2 , cos(x) &gt; 0
vodomira [7]

Answer:

  • sin(2x) = -4/5
  • cos(2x) = 3/5
  • tan(2x) = -4/3

Step-by-step explanation:

It may be easiest to start with tan(2x).

  tan(2x) = 2tan(x)/(1 -tan(x)²)

  tan(2x) = 2(-1/2)/(1 -(-1/2)²) = -1/(3/4)

  tan(2x) = -4/3 . . . . . still a 4th-quadrant angle

__

Then cosine can be found from ...

  cos(2x) = 1/√(tan(2x)² +1) = 1/√((-4/3)²+1) = √(9/25)

  cos(2x) = 3/5

__

Sine can be found from these two:

  sin(2x) = cos(2x)tan(2x) = (3/5)(-4/3)

  sin(2x) = -4/5

5 0
3 years ago
Other questions:
  • 2. Any object that a magnet attracts is a magnetic<br> A. pole.<br> B. field.<br> C. material.
    15·2 answers
  • n the 2010 World Cup, Paul the Octopus (in a German aquarium) became famous for being correct in all eight of the predictions it
    11·1 answer
  • Does 5^9 x 6^7= 30^16 ?
    15·1 answer
  • Find the equation of the line that is perpendicular to y = – 1 3 x + 2 and passes though the point (–5, 2).
    5·1 answer
  • Please help AS LEVEL c2 tell me how to work out
    14·1 answer
  • If u have 325.58 in your checking account and then write a check for 166.73 what is your new balance?
    14·1 answer
  • Please answer a few of these math questions! Thank you!
    11·2 answers
  • Solve for x in a triangle. Round your answer to the nearest hundredth
    11·1 answer
  • 3 out of 4 students like to eat breakfast at school. What percent of students like to eat breakfast?
    15·2 answers
  • Graph the following conditions. {(x, y): x + 2y &gt; 6}
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!