Julie buys 2kg of apples and 7 kg of pears for £12.70. the pears cost £1.30 per kilogram. what is the price per kilogram of the apples?

Question

Julie buys 2kg of apples and 7 kg of pears for £12.70. The pears cost £1.30 per kilogram. What is the price per kilogram of the apples?

Step-by-step explanation:

find the price of pears

7kg * 1.30£ = 9.1£

from the total price take away the cost of pears

12.70 - 9.1 = 3.6 £ (price of 2Kg of pears)

3.6 : 2 = 1.80 £ ( cost of 1 Kg of apples)

or you can solve with an expression

12.70 - (7 * 1.3) : 2 =

1.80 £

395.84

step-by-step explanation:

2πrh+2πr²

2 (pie)(radius)(height)+2(pie)(radius)^2

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for