Alex and Ben share £520 in the ratio 1 : 3. How much money does Alex receive? *

£130

Step-by-step explanation:

With 'sharing' ratios problems like this, find the total amount of parts of the ratio :

1 : 3 = 1 + 3 = 4

Now divide the total amount of parts by the total amount of money shared :

£520 ÷ 4 = 130

Now multiply 130 by the appropriate value, in this case, Alex's value, which is 1

£130 x 1 = £130

hope this helps :)

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.