keanakrounds keanakrounds
  • 15-05-2021
  • Mathematics
contestada

The first one I know but the other two I need help with

The first one I know but the other two I need help with class=

Respuesta :

cwayneu
cwayneu cwayneu
  • 15-05-2021

Answer:

a) 44

b) 11

c) 4

Step-by-step explanation:

a) x + 46 = 90

   x = 90 - 46

   x = 44

b) 9x + 81 = 180

   9x = 180 - 81

   9x = 99

     x = 11

c) (5x + 30) + 40 = 90

   (5x + 30) = 90 - 40 = 50

    5x + 30 = 50

    5x = 50 - 30

    5x = 20

       x = 4

Answer Link

Otras preguntas

Is this the correct procedure for this kind of question? Apparently the answer is supposed to be log6/log5.
Michael reads 12 pages of a book in 18 minutes,8 pages in 12 minutes and 20 pages in 30 minutes. Is this a proportional relationship? If so, what is the consta
No _____ de servir la salsa con las tortillas. te olvidas te olvides olvida olvides
Can anyone please help me with this.
in what why did the climate and rivers affect the development of ancient china
Please answer 2/4 i need help please help me
with the issuance of the Monroe Doctrine, was America a world power? explain your reasoning
What are the major organ parts of the nervous system
Cobalt-63 has a half-life of 5.3 years. If a pellet that has been in storage for 15.9 years contains 40.0g of Cobalt-63, how much of this radioisotope was prese
on what shelf of the school library one half of the books are about sports Josie sees that 3/4 of the sports books are about basketball what fraction of the boo