Question

WHOEVER CAN HELP ME CORRECTLY FIRST I WILL AWARD BRAINLIEST!!! I really need help on these Maths questions. No silly answers, please. Question 1: Heather invested money into a savers bank account. Each year the money in the accounts earns a 10% interest. After one year, the total amount of money in the account was £2200. How much did Heather invest? Question 2: The population of an island has decreased by 40% over 50 years. The population in 2018 was 360. What was the population in 1968?

Answer 1

Answer:

1:The 10%of 2000 is 200.Then 2000-200=2000.

So Heather invested 2000

Answer 2

Answer: 1)  Let x be the amount he invested (the value under the question).

Then, according to the condition,

 x + 0.1x = 2200,   or

x*(1 + 0.1) = 2200,

 1.1x        = 2200

x        = 2200/1.1 = 2000.

Heather invested $2000.

2) The population was 600 in 1968