Question

Using literal numbers to represent the unknown
(a) Six added to five times a number.
(b) Two subtracted from the difference of a number and
(c) Eight times, the sum of a number and five.
(d) Add one, to the number divided by six, and multiply
(e) The quotient obtained by dividing a number by forty,
(1) The product of a variable and negative three, added to
g) Eight subtracted from four times a number multiplied
h) Two subtracted from the negative of a number multip
D) Seven added to, eight times a number divided by two
1) One subtracted from, three times a number
each of the following expressions, pick out the variables and​​

Answer 1

Answer:

we have 2 scenario upstream and downstream. if the boat is floating along the stream with same velocity, It is called as downstream(B+S). and if the boat is floating against the stream with same velocity is called upstream(B-S). here B and S are abbreviation of boat and stream respectively .In this case distance traveled by boat in the upstream and downstream are same.

Take we know stream(s) speed is 4kmph.

distance traveled in upstream = distance traveled in downstream

(B-S)time in upstream=(B+s) time in downstream

(B-4)2.5=(B+4)2

B=36kmph.

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Step-by-step explanation: