Question

solve the give :-
(a)
$7n - 80 = 10$(b)
$\frac{7}{5} + \frac{3}{5}$
(c)
$\frac{n}{4} + 10 = 30$



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Answer 1

Answer:

a) 33.33%

b) 12.5%

c) 62.5%

d) 8.333%

e) 41.666666666667

Answer 2

Step-by-step explanation:

a) 7n-80=10

=>7n=10+80

=>7n=90

=>n=90/7

Therefore n=12 6/7

b)7/5+3/5

=>(7+3)/5

=>10/5

=>2

c)n/4+10=30

=>n/4=30-10

=>n/4=20

=>n=4×20

=>n=80