Given that x : 3 : 9/2 = 15/4 : 4 1/2 : y, find the value of x and y.

x = , y =

Step-by-step explanation:

Equate the first 2 parts of the ratios on both sides of the equation and solve for x.

Expressing the ratios in fractional form, then

= = × = ( cross- multiply )

6x = 15 ( divide both sides by 6 )

x = =

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Equate the last 2 parts of the ratios on both sides and solve for y

= = 3 × = ( cross- multiply )

2y = × 3 = ( divide both sides by 2 )

y =

answer: i wpould go with c

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies