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
Blizzard [7]
3 years ago
9

F(7)+x F=2x+5x how do i solve this?? Someone please help exam tmrw

Mathematics
1 answer:
8090 [49]3 years ago
6 0

Answer:

49-7F

Step-by-step explanation:

F(7)+xF=2x+5x

F(7)+xF=7x

F(7)=7x-xF

F(7)=x(7-F)

substitute x=7 in the equation above

Therefore, 7(7-F)

=49-7F

You might be interested in
Cody and his friends started playing a game at 6:30 p.M. It took them 37 minutes to finish the game. At what time did they finis
Charra [1.4K]

Answer:

7:07pm.

Step-by-step explanation:

There's no way to explain this you just need to know time.

7 0
3 years ago
Read 2 more answers
When two computers are working together, they can finish updating software in 9 minutes. How long would they take individually t
tensa zangetsu [6.8K]
First computer takes x min. For 1 min it does 1/x part of work.

Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.

Both computers for one min do   (1/x+1/(x+24)) part of work.

At the same time, both computers for one min do 1/9 part of work.

\frac{1}{x} + \frac{1}{x+24} = \frac{1}{9} 
\\ \\  \frac{x+24+x}{x(x+24)} =  \frac{1}{9} 
\\ \\9(2x+24)=x^{2} +24x
\\ \\ 18x+216=x^{2} +24x
\\ \\ x^{2}+6x-216=0
\\ \\ D=b^{2}-4ac=36+4*216 = 900
\\ \\ x= \frac{-b+/- \sqrt{D} }{2a}  =  \frac{-6+/-30}{2} 
\\ \\ x_{1}=-18, x_{2}=12

We can use only positive number here. So, 

for the first computer x=12 min,

 for second computer x+24=12+24= 36 min

Answer 12 min and 36 min.


7 0
3 years ago
I need help with #11 and #17 PLEASE​
shutvik [7]

Answer:

11.   ∠B    ∠ABC     ∠CBA     ∠2

17.    QR = 12

Step-by-step explanation:

11.   ∠B    ∠ABC     ∠CBA     ∠2

17.    Given:  PS = 18     PR = 15      PQ ≅ RS

       It would be good if you could draw a picture for yourself

So, RS  = PS - PR

             = 18 - 15 = 3

       RS = PQ = 3

        QR = PS - RS - PQ

              = 18 - 3 - 3

              = 12

5 0
2 years ago
Dentro de 10 años, la edad de Pepe será igual al cuadrado de las edad que tenía hace 10 años. ¿Qué edad tiene Pepe?
kherson [118]

Answer:

??.......... ........

8 0
3 years ago
Solve for a - due soon!
telo118 [61]
A = 1/2 or 0.5
My work is shown below. I hope this helped!! ^w^

6 0
3 years ago
Other questions:
  • Robyn opened a bank account to save her birthday money. it was paying 3.75% interest. then the interest rate went up by 0.65%. h
    15·2 answers
  • Madeleine wants to paint her living room and dining room taupe. the total area to be painted is 825 ft2. each gallon covers 75 s
    14·1 answer
  • Last Wednesday it snowed 3 1/4 in. On Sunday it snowed 3 4/5 in. On which day did it snow more? How much more?
    12·2 answers
  • Help!!!!! Not the top one by the way..!
    15·1 answer
  • Number 13 ASAP ASAP thanks<br> And 14 if you don’t mine pls
    5·2 answers
  • the sum of two numbers is 63. The smaller number is 9 less than the larger number.what are the numbers
    9·1 answer
  • Cuantos minutos hay de diferencia entre 4.8 h y 5 h​
    14·1 answer
  • Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.
    9·1 answer
  • Communicate Mathematical Ideas Why do you subtract exponents
    6·1 answer
  • let t : r2 →r2 be the linear transformation that reflects vectors over the y−axis. a) geometrically (that is without computing a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!