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
Licemer1 [7]
3 years ago
13

This is what I got,

Mathematics
1 answer:
USPshnik [31]3 years ago
4 0
1/x + 1/y = 8
x + y = 8
6/x + 12/y = 72n
You might be interested in
Show coins to count back the change you would get if you bought candy for .12 cents and paid for it with a quarter. answer
Veronika [31]

If you subtract 25 from 12 you will get 13 cents. So you will get back 1 dime and 3 pennies.

I hope this helped you :)

6 0
3 years ago
What is the value of the expression?<br> -16+ 12 <br>(A)-28 <br>(B)-4 <br>(C)4 <br>(D)28 ​
Elden [556K]

Answer:

-16+12= -4

Step-by-step explanation:

When we mins 12 from 16 (16-12) we get 4.

Similarly. When we minus 16 from 12 (12-16) we get -4 because we choose the sign with the greater number.

6 0
2 years ago
Alfonso runs 10 km at an average speed of x km/h.
puteri [66]

Step-by-step explanation:

Note that t = d/r where t is time, d is distance, and r is rate/speed.

We can come up with two equations with the information given and the equation:

t_1 hr = (10 km)/(x km/hr)

t_2 hr = (12 km)/(x - 1 km/hr)

<em>where t_1 is the time taken to run the 10km the first day and t_2 is the time taken to run the 12km the second day.</em>

We know that 30 minutes is 1/2 of an hour and that t_1 is 30 minutes less than t_2 (as stated in the question). Therefore, we can write:

t_1 = t_2 - 1/2

Substituting the values we derived:

(10 km)/(x km/hr) = (12 km)/(x - 1 km/hr) -1/2

Then we can evaluate by multiplying by 2x(x-1) on both sides:

20(x-1) = 24x - (x)(x-1)

20x - 20 = 24x - x^2 + x

x^2 -5x -20 = 0

And we are done.

I hope this helps! :)

6 0
3 years ago
2) How many unique triangles can be drawn with side lengths 5 cm, 10 cm, and 14 cm?
iogann1982 [59]

Answer:

i wanna start a family with you ok

Step-by-step explanation:

.........................................

8 0
3 years ago
5x + 6y = 16<br> -10x-12y = 25
Doss [256]

Answer:

  no solution

Step-by-step explanation:

There is no solution to this inconsistent system of linear equations. They describe parallel lines.

__

Adding twice the first equation to the second gives ...

  2(5x +6y) +(-10x -12y) = 2(16) +(25)

  0 = 57 . . . . . . . simplify. False

No values of x and y will make this statement true. There is NO SOLUTION to the system of equations.

6 0
2 years ago
Other questions:
  • May someone please help me?
    6·1 answer
  • 9m=6 what does m = in this equation ?
    11·2 answers
  • Find the quotient 1/5 divided by 2
    12·2 answers
  • My Friend John loves Epcot. It is his favorite park. He wanted to know if people who live in Florida like Epcot better than The
    8·1 answer
  • Amy earned $25 after babysitting for 3 hours. If she always charges the same rate, how many will she make after working for 7 ho
    9·1 answer
  • HELP ME PLEASE i need this right now
    15·2 answers
  • Quick please <br> 7.find the area of the shaded region of the rectangle:
    11·1 answer
  • PLEASE HELP IM GETTING TIMED 8. The graph shows the relationship between the depth of a diver and the time that has passed .
    10·2 answers
  • 10
    11·1 answer
  • If the ratio of girls to boys is 2/5 , then what other ratio is equivalent?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!