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
Umnica [9.8K]
3 years ago
11

Solve the system by substitution. 2x + 3y = 32 y = x + 9

Mathematics
1 answer:
HACTEHA [7]3 years ago
3 0

Answer:

x=1 and y=10 (1,10)

Step-by-step explanation:

2+30=32

10=1+9

You might be interested in
Someone please help me with this.
Vladimir [108]

Answer:y=17

Step-by-step explanation:

5 0
3 years ago
The engine torque y (in foot-pounds) of one model of car is given by y=−3.75x2+23.2x+38.8, where x is the speed (in thousands of
Stels [109]

Answer:

Step-by-step explanation:

If the engine torque y (in foot-pounds) of one model of car is given by y=−3.75x^2+23.2x+38.8

The engine speed is at maximum if dy/dx = 0

dy/dx = -2(3.75)x+23.2

dy/dx = -7.5x + 23.2

since dy/dx = 0

0 =  -7.5x + 23.2

7.5x = 23.2

x = 23.2/7.5

x = 3.093

Hence the maximum torque is 3.09 rev/min

8 0
3 years ago
If you have 8 batteries cost $40 [cost per battery]
Finger [1]

Answer:

the answer is 5 because 40 divided by 8 is 5

5 0
3 years ago
Read 2 more answers
what is the radius of a circle with a circumference of 125 cm? round your answer to the nearest whole number .use 3.14
Lerok [7]

Answer:

19.9 i think

Step-by-step explanation:

125/3.14=39.8

39.8/2=19.9

hope i helped

5 0
4 years ago
Read 2 more answers
Fiona is gathering signatures on a petition to save the Orangutans. If she gets 4 times the number of signatures that she has ri
Reika [66]

Answer: 2000

Step-by-step explanation:

Set up equation

The total signatures she needs is 4 times as many as she has. From this we can create the equation (4n = total signatures)

We know that the total number of signatures is 8000, so plug this into the equation to get 4n = 8000

Solve for n

Now that we have an equation, we can solve for n by dividing both sides by 4

4n = 8000

n = 8000 / 4 = 2000

Final Answer

Fiona has collected 2000 signatures so far

3 0
4 years ago
Other questions:
  • The depth of the water at the end of a pier changes periodically along with the movement of tides. On a particular day, low tide
    10·2 answers
  • A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many
    12·1 answer
  • 18-3n+2=n+20-4n which is the solution 0 (0) or all reals
    6·1 answer
  • PLEEEAAAASE HELLP!!!Tina is making a cylindrical sandbox that has a radius of 2 feet. She bought 18.84 cubic feet of sand for th
    10·2 answers
  • There were 32 adults and 4 children in line at the movie theater. How many times more adults were in the line than children?
    6·2 answers
  • Solve the system of equations using elimination 2x+y=3 and 3x-y=12
    15·1 answer
  • Dean purchased a box of cereal Which of these measurements BEST describes the volume of the box?
    5·1 answer
  • For which equation is x=5 a solution?
    6·1 answer
  • Help me with this please!!
    12·1 answer
  • Element X decays radioactively with a half life of 7 minutes. If there are 980 grams of Element X, how long, to the nearest tent
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!