Sally has 2 cats and each cat eats a quarter of a tin of cat food each day.
Sally buys 9 tins of cat food.
For how many days will the cat food feed her 2 cats?
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I

18 days

Step-by-step explanation:

Since each cat eats a quarter of a tin each day, this means the  2 cats eat half of a tin for each day

We can use proportion to solve this problem

Let x be the number of days the two cat will feed on 9 tins

tin  =  1 day

9 tins  =  x

cross-multiply

×  x  =  9

x  = 9

To get the value of x, we will multiply both-side of the equation by 2

2× x  = 9 × 2

At the left-hand side of the equation 2 at the  numerator will cancel-out 2 at the denominator

x = 18 days

Therefore it will take  18 days for the two cats to feed on 9 tins of cat food

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500