Answer:
Creo que la respuesta sería B: 2 horas y 15 minutos.
Step-by-step explanation:
Answer:
E = (1, 2)
Step-by-step explanation:
You want ...
(E -G) : (O -E) = 3 : 4
4(E -G) = 3(O -E) . . . . . . . . "cross multiply"
4E -4G = 3O -3E . . . . . . . . eliminate parentheses
7E = 4G + 3O . . . . . . . . . . . add 3E+4G
E = (4G +3O)/7 . . . . . . . . . .divide by 7
E = (4(-5, -1) +3(9, 6))/7 = (-20+27, -4+18)/7 = (7, 14)/7 . . . . fill in G and O
E = (1, 2)
Step-by-step explanation:
Nickels = 112 * 3 / (3 + 4 + 7) = 24.
Answer: 54x^2 - 330x - 336
step by step explanation:
6 (x-7) x (9x+8)
distribute 6 through the parentheses
(6x - 42) x (9x+8)
multiply the parentheses
54x^2 + 48x - 378x -336
collect like terms
54x^2 - 330x - 336
and thats your answer
hope this helps you :)