Kate bought some blueberry muffins and some corn muffins. The ratio of the number of blueberry muffins to corn muffins is 1:3. Kate bought 2 dozen muffins. How many of each type of muffin did she buy? *

8 blueberry   16 corn

Step-by-step explanation:

First we need to understand the ratio this ratio means for every 3 corn muffins there is 1 blueberry muffin.  We also know that there are 2 dozen muffins which equals 24.  Then we can do 24 divided by 3 and which we get eight and that is how many blueberry muffins there are. then all you do is subtract 24 minus 8 and get 16 corn muffins.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

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