12r=156
Answer r=13
it will help you
Answer:
Step-by-step explanation:
Answer:
(4, 0)
Step-by-step explanation:
given the 2 equations
y = x - 4 → (1)
- 4x - 6y = - 16 → (2)
substitute y = x - 4 into (2)
- 4x - 6(x - 4) = - 16
- 4x - 6x + 24 = - 16
- 10x + 24 = - 16 ( subtract 24 from both sides )
- 10x = - 40 ( divide both sides by - 10 )
x = 4
substitute x = 4 into (1) for corresponding value of y
y = 4 - 4 = 0
solution is (4, 0)
Answer:
54 daisies
Step-by-step explanation:
4 tulips : 9 daisies
24 tulips : ?
(24 × 9) ÷ 4 = 54 daises
Let 
be the number of hours worked at Job A and 
the number of hours at Job B. Then
and
From the first equation,
and substituting this into the second gives
