Answer:
D.
Step-by-step explanation:
-2x-1 =y
-2x 2= -4-1
= -5
=2, -5
Answer:
Step-by-step explanation:
Four times a number is equal to negative eight.
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Answer:
The number of pipes to be cut from total length of pipe is 10 pipes
Step-by-step explanation:
Given as :
Total length of pipe = l = 7
foot
i.e ' =
foot
The length of pipe to be cut = l' =
foot
Let The number of pipes to be cut = n pipes
<u>According to question</u>
The number of pipes to be cut = 
i.e n = 
Or, n = 
Or, n = 
or, n = 5 × 2
∴ n = 10 pipes
So, The number of pipes to be cut = n = 10 pipes
Hence, The number of pipes to be cut from total length of pipe is 10 pipes Answer