Answer:
the given equation is y=4/7x
reciprocating both sides you get y/x =7/4
now x and y are directly porportional to each other so
x=ky where k is the constant
or x/y=k ......................(2)
equating 1 and 2
k=7/4
Step-by-step explanation:
Answer:
1)Add 19
2)Multiply by 5
Step-by-step explanation:
Adding 19 to both sides.
Multiplying 5 to both sides.
∴
Answer:
k + 1
v(s) = -------------
S
Step-by-step explanation:
Solve the equation S=k/v(s)+1/v(s) for v(s).
To do this, combine the two terms on the right side, which is easily possible becuse they have the same denominator: v(s):
k + 1
S = ------------
v(s)
Now interchange S and v(s), obtaining:
k + 1
v(s) = -------------
S
Answer:
-17/10 ( or 1 7/10)
Step-by-step explanation:
-2 1/8 ÷ 1 1/4 (convert into improper fractions)
= (-17/8) ÷ (5/4)
= (-17/8) x (4/5)
= - (17 x 4) / (8 x 5)
= -68/40
= -17/10 ( or 1 7/10)
