Answer: ruler cost $12
Step-by-step explanation:
step 1
Let cost of ruler be represented as r
and cost of pencil be represented as p
we were given that
4 rulers and a pencil and these cost the same as 2 rulers and 4 pencils which is expressed as
4r + p = 2r+ 4p
and cost of pencil= $8
therefore
sTEP 2--- Solving
4r+ 8 = 2r+ 4 x8
4r+ 8 = 2r+ 32
4r - 2r= 32-8
2r= 24
r= 24/2 = r= $12
Answer:
5/11
Step-by-step explanation:
Answer:
10/12 and 15/18
Step-by-step explanation:
You multiply both sides by 2 and then 3
Answer:
h = -10.
Step-by-step explanation:
They will be equal for a specific value of h.
Solve for h:
5h + 20 = 3h
5h - 3h = -20
2h = -20
h = -10.
Checking:
Left side = 5(-10) + 20 = -30.
Right side = 3*-10 = -30.
Answer:
321354345
Step-by-step explanation: