2 years ago

W is directly proportional to u if w=5 when u=3,find u when w is =2/7

Mathematics

1 answer:

Allisa [31]2 years ago

8 0

Answer:

u = 6/35

Step-by-step explanation:

w = k * u

w = ku

Where

k = constant of proportionality

if w=5 when u= 3

w = ku

5 = k * 3

5 = 3k

k = 5/3

find u when w is =2/7

w = ku

2/7 = 5/3 * U

2/7 = 5/3u

u = 2/7 ÷ 5/3

= 2/7 × 3/5

= (2*3)/(7*5)

= 6/35

u = 6/35

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W is directly proportional to u if w=5 when u=3,find u when w is =2/7​

W is directly proportional to u if w=5 when u=3,find u when w is =2/7