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
tigry1 [53]
3 years ago
7

Two times a number added to another number is 25. Three times the first number minus the second number is 20. What are both numb

ers?
Mathematics
1 answer:
lawyer [7]3 years ago
7 0

Answer:

the two number are 7 and 9

Step-by-step explanation:

2*x+y=25

3x-y = 20

add the two equations

2*x+y=25

3x-y = 20

---------------

5x = 45

divide by 5

5x/5 = 45/5

x = 9

lets find y

2x+y = 25

substitute x

2*9 +y =25

18+y =25

subtract 18 from both side

y = 25-18

y =7

You might be interested in
Eric Kweeder can paint a wall in
pentagon [3]
The answer of the question is 12minutes
4 0
3 years ago
Read 2 more answers
All you need is in the photo ​
Deffense [45]

Answer:

Bottom to top -

0,-3

0,1

1,2

7 0
3 years ago
During the summer, you work 30 hours per week at a gas station and earn $8.75 per hour. You also work as a landscaper for $11 pe
Lena [83]
You need to work about 12.5 hours because from your gas station job, since you work 30 hours every week, times that by 8.75$ which equals 262.5$ at the end of the week, so subtract 262.5 from 400 which is 137.5, then you need to dived that by 11 since its $ per hour, after doing that you get 12.5 hours, so you would have to work 12.5 hours at your landscaper job
8 0
3 years ago
What is the inverse of f(x)=x^4+7 for x&gt;0 where function g is the inverse of function f?<br> -
Ann [662]

Answer:

g(x) = \sqrt[4]{x-7},~ x\geq 7

Step by step explanation:

y= f(x) = x^4+7\\\\\text{Replace x with y and solve for y:}\\\\~~~~~~~x = y^4 +7\\\\\implies y^4 = x-7\\\\\implies y = \pm\sqrt[4]{x-7}\\\\ \implies f^{-1}(x) = \pm\sqrt[4]{x-7}

7 0
2 years ago
HELP!! Which truck pulled 2,000 pounds at the average<br> speed of 2 yards per minute?
Advocard [28]
The correct answer it would be B

Ford
8 0
3 years ago
Other questions:
  • Annie is planning a business meeting for her company. She has a budget of $1,325 for renting a meeting room at a local hotel and
    10·1 answer
  • Arnold had three pieces of different colored strings that are all the same length Arnold cut the blue string and a two equal sid
    12·2 answers
  • Can someone answer this?
    15·1 answer
  • Graph the function. Then use your graph to find the indicated limit. f(x) = |3x|, limx→−2 ∞
    12·1 answer
  • Express the solution set of the equation in set notation.<br><br> x - 2 = 10
    5·1 answer
  • The formula for the time it takes to travel a distance of d at an average speed v is (d)/(v)
    10·1 answer
  • 3x-5y=22 2x+y=6<br> may you explain how you got the answer
    7·2 answers
  • The surface area of the world is about 4/10 water. If a very small, non-dangerous meteoroid lands on the earth, what is the prob
    5·1 answer
  • Plase help I need it​
    7·1 answer
  • In the diagram below, a sequence of rigid motions maps ABCD onto JKLM.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!