3x + 4 = 2x + 2
3x - 2x = 2 - 4
x = -2
one solution
Answer:
x=1
Step-by-step explanation:
you would substitute the first equation in for the y in the second equation
x + 2x+3 =6
then you would combine the x's
3x +3 = 6
Then you would move the 3 to the other side with the six
3x =6-3 3x = 3
Then finally you would divide the three
3x/3 = 3/3 x=1
k = 18
the common difference d of an arithmetic sequence is
d = a₂ - a₁ = a₃ - a₂ = ....
a₂ - a₁ = 2k - 1 - k - 9 = k - 10 and
a₃ - a₂ = 2k + 7 - (2k - 1) = 2k + 7 - 2k + 1 = 8, hence
k - 10 = 8 ⇒ k = 8 + 10 = 18
the 3 consecutive terms are
27, 35, 43
Answer:
$11.25 an hour
Step-by-step explanation:
427.50=38x
38x=427.5
÷by 38
x=11.25
I'm only doing these because it's about a pet pig named Hammy.
5.
rate = distance / time
a.
rate: 36 inches per 3 seconds
b
unit rate: 12 inches per second
c
5 seconds × 12 inches per second = 60 inches
d
144 inches / 12 inches per second = 12 seconds
6.
a.
b.
c
d
