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
you pay 3.3 cents per minute for long-distance phone calls on your phone. your phone bill is $3.40 write and solve an equation t
MaRussiya [10]
If you would like to know the number of minutes of long-distance calls you made, you can calculate this using the following steps:

3.3 cents = $0.033
m = $3.40 / 3.3 cents
m = $3.40 / $0.033 = 3.40 / 0.033
m = 103.03 minutes 

The correct result would be <span>103.03 minutes.</span>
5 0
3 years ago
Graph the equation.
Natalija [7]

Answer:

69

Step-by-step explanation:

nice ;)

7 0
3 years ago
SOMEONE PLEASE ANSWER ASAP FOR BRAINLIEST!!!!!
Angelina_Jolie [31]
The formula is D=PT/F
3 0
3 years ago
Read 2 more answers
A fountain is made up of two semicircles and a quarter circle. Find the perimeter of the fountain. Round answers to nearest tent
AlexFokin [52]

Answer:

39.275

Step-by-step explanation:

the diameter of the semicircle is 10

A semicircle is half a circle, and a quarter circle is 1/4 of a circle.

Perimeter of a semicircle is ¶d/2

= 3.142 x 10/2 = 3.142 x 5 = 15.71

For 2 semicircles that will be 15.71 x 2 = 31.42

For the quarter circle, perimeter is ¶d/4 = 3.142 x 10/4 = 3.142 x 2.5 = 7.855

Total perimeter = 31.42 + 7.855 = 39.275

5 0
3 years ago
PLEASE HELP!!! I REALLY NEED SOMEONE TO ANSWER THIS I HAVE ATTACHED A PICTURE
earnstyle [38]

Answer:

2.3 hours, or 2 hours & 18 minutes

Step-by-step explanation:

we are trying to find h when d is 56.68, so I replaced d with 56.68

56.68=24.6h+0.1\\

subtract 0.1 from both sides

56.58=24.6h

divide both sides by 24.6

2.3=h

7 0
3 years ago
Other questions:
  • Which product is negative? (Negative StartFraction 3 over 8 EndFraction) (Negative StartFraction 5 over 7 EndFraction) (one-four
    5·2 answers
  • The slope of a line is -3 and the y intercept is (0,4). What’s is the equation of the line in slope intercept form
    11·1 answer
  • Help please guys help
    5·1 answer
  • 2x(x+4)+7+=(x+8)+ 2x(x+1)+12=
    11·1 answer
  • For each ordered pair determine whether it is a solution to 4x-7y=19
    6·1 answer
  • The ratio of the number of boys to the number of girls in choir is 5 to 4. There are 60 girls in the choir. How many boys are in
    7·2 answers
  • Given the figure as marked, find the perimeter and area.
    10·1 answer
  • PLEASE HELP ME:( TRUE OR FALSE A covenant not to sue is a contractual provision in which one party promises not to sue the other
    5·2 answers
  • I have "Write an equation for each problem. Then solve the equation.
    14·1 answer
  • Research suggests that students could benefit from later school starting times. A school administrative team is considering a pr
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!