fpaulinapaulinaf
fpaulinapaulinaf fpaulinapaulinaf
  • 11-01-2017
  • Mathematics
contestada

3t+u=561

7b+t=906

2b+7t+5u=1758

what are t, u, and b
(give me the numbers)
Show your work

Respuesta :

Menna3aly
Menna3aly Menna3aly
  • 11-01-2017
Look, solve it first for" b "
u=561 - 3t
t =906 - 7b
So, 2b+7(906 -7b)+5(561 - 3(906-7b)=1758
gain the b then substitute by the result in the second equation then gain the value of t and solve the first equation.
Answer Link

Otras preguntas

An industrial cleaner is manufactured using only the 3 secret ingredients A, B, and C, which are mixed in the ratio of 2:3:5, respectively, by weight. How many
If an impulse is a fraction of a second and 30 impulses equal 1/2 second, how many seconds is represented by 90 impulses?
How much water should be added to 18ml of 10% alcohol solution  to reduce to reduce the concentration to 9%
I don't understand how to get 50000 ohms, please can someone help? I would have just left my answer at 25,000 ohms!
what is speedwriting?
what is approximate rhyme?
what is approximate rhyme?
The inequality 6(x + 2) > 7(x − 5) is equivalent to which of the following inequalities? A. x < −23 B. x < 07 C. x < 17 D. x < 37 E. x < 47
Divide. (3a3 + 6a2) ÷ 3a  how do I do this?
Prove the following identity :Sin α . Cos α . Tan α =  (1 – Cos α)  (1 + Cos α)