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
vodka [1.7K]
3 years ago
7

Help me please pretty

Mathematics
1 answer:
LiRa [457]3 years ago
6 0

x=-y/3 +9 i believe that should help you

You might be interested in
A motorcyclist leaves City A and rides at a constant speed towards City B, which is 225 km away. After 1.5 hours, the motorcycli
rewona [7]

Answer:

50 km/hr

Step-by-step explanation:

OK, this is how I solved this problem.

Let r = original rate of speed

     t = time after the stop to finish the trip

Time for trip without stopping is 225/r

(1)     1.5 + .5 + t = 225/r      This is a time equation

(2)    1.5r + t(r + 10) = 225     This is a distance equation

(1)       2 + t = 225/r            (2)      1.5r + tr + 10t = 225

         2r + tr = 225

                tr = 225 - 2r                 1.5r + 225 - 2r + 10(225/r - 2) = 225

                t = 225/r - 2

                                                   -.5r + 225 + 2250/r - 20 = 225

                                                     -5r + 2250 + 22500/r - 200 = 2250

                                                     -5r^2 + 2250r + 22500 - 200r = 2250r

                                                       5r^2 + 200r - 22500 = 0

                                                       5(r^ + 40r - 4500) = 0

                                                           5(r - 50)(r + 90) = 0

                                                                 r = 50   or    r = -90

The rate cannot be negative, so the original speed 50 km/hr

This not an easy problem and I hope you were able to follow my work

5 0
3 years ago
Read 2 more answers
What is the answer to this question?
Tanya [424]

Answer:

a^(-1/2) = 1/sqrt(a) = 3

so.

sqrt(a) = 1/3

a = 1/9

6 0
2 years ago
Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70° angle to th
vovangra [49]
Let the ladder length be L, then

sin 70 = 20/L, L = 20/sin70 = 21.3 feet
the length of ladder is 21.3 feet
5 0
2 years ago
Roulette is a casino game that involves players betting on where a ball will land on a spinning wheel. An American roulette whee
nikitadnepr [17]

Answer:   -0.053

Step-by-step explanation:

1•(18/38) + -1 •(20/18) = -0.053

3 0
2 years ago
Read 2 more answers
Make sure you show all your work for full points.<br> What is y?<br> yz<br> 42<br> 26<br> 55
svetoff [14.1K]
Y equal 55 .........
7 0
2 years ago
Other questions:
  • The sides of an equilateral triangle are 8 units long. What is the length of the altitude of the triangle?
    10·2 answers
  • Solve the equation x^3-5x^2+2x+8=0 given that -1 is a zero of f(x)=x^3-5x^2+2x+8
    9·1 answer
  • Find the area of the crescent-shaped region (called a lune) bounded by arcs of circles with radii r = 2 and r = 14
    10·1 answer
  • At the beginning of 2002, an ice cream shop claimed to have "nearly 969 different ice cream flavors." Assuming that you could ch
    11·2 answers
  • What is the equation of the line that passes through point (4, 12) and has a intercept of -2​
    7·1 answer
  • What's the volume of the figure​
    14·2 answers
  • I need to know this asap pleasee
    11·1 answer
  • What is equal to x + y + y+ x + y
    12·2 answers
  • 7 freinds to a party if each freind will get 5 cookies and each box has 12 cookies how many boxes does shenika need to get
    10·2 answers
  • If there are 1,800 members in the gym, how many are men?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!