Question

5. A rope is 3a + 6 metres long and is attached to another rope of length 2a –7 metres. Find the total length of the rope.​

Answer 1

Answer:

If A rope = 3a+6

And B = 2a-7

Total length = A+B

(3a+6)+(2a-7)

5a+6-7

5a-1 is the total length of the rope

Answer 2

Given,

• Length of the rope1 = 3a +6 m
• Length of the rope 2 = 2a-7 m

To find,

• The total length of the rope

Solution,

If a rope is 3a + 6 m long and is attached to another rope of length 2a –7 m, then the total length of the rope is 5a-1 m.

We can simply find the total length of the rope by adding the two lengths of the rope.

The total length of the rope = length of the rope 1 + length of the rope 2

                                        = 3a + 6 +2a -7

                                        = 5a -1 m

∴ The total length of the rope is 5a-1 m.

Hence, the total length of the rope is 5a-1 m.