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3 years ago

Can someone please help me out marking brainliest for a good explanation (picture)

Mathematics

2 answers:

geniusboy [140]3 years ago

6 0

Step-by-step explanation:

9 a = soln

3:9 = 6:n

or, 3/9 = 6/n

or, 3n = 54

or, n = 54/3

so, n = 18

b = soln

n/10 = 6/15

or, 15n = 60

or, n = 60/15

so, n= 4

10) a = 15% of 450

= 15/100 * 450

= 15/10 * 45

or, 15/2 * 9

or, 135/2

= 67.5 g

b= 125% of 60

= 125/100 * 60

= 5/4 * 60

= 5*15

= $75

Oksana_A [137]3 years ago

3 0

Answer:

9. a) 18 b) 4

10. a) 67.5g b) $75

Step-by-step explanation:

9. a) 3*n=(9*6), n=18

b) cross multiply and you will get 15n=60, n=4

10 a) 15% of 450=(15*450)/100=67.5

b) 125% of $60=(125*60)/100=75

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Step-by-step explanation:

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2 years ago

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Combining (1) & (2), we find:

$y\:\alpha \:\frac{x^2}{\sqrt z}$

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