Maths Questions? 11 Points To Correct Answer?

Question

£72.50 increased by 23%
£118.20 decresed per year by 17% for 3 years

Easy, But Im Bored So ANSWER

Anyone Got The Second One???
Almost People

Question One: What Is £72.50 increased by 23%
Question Two: What Is £118.20 decresed per year by 17% for 3 years

Answer 1

£72.50 increased by 23% = £(72.50 + {0.7250 x 23})
= 72.50 + 16.675
= £89.18


£118.20 decreased per year by 17% for 3 years

After 1st year = 118.20 - 20.09 = £98.11 {approx}
After 2nd year = 98.106 - 16.68 = £81.43 {approx}
After 3rd year = 81.42798 - 13.84 = £67.59 {approx}

:-) :-)

Answer 2

Here's how you can go about solving: Two of the numbers add up to 0, so one must be the negative of the other. Call them x and -x (where x > 0) Now can there be other negative numbers? No, otherwise, when you add them together you would get a negative number, but there are no numbers less than zero in list of sums Now are any of the other three numbers < x? No, otherwise if you added -x to it, you would get a negative number. So five numbers are -x, x, a, b, c where -x < x < a < b < c -------------------- -------------------- Now since each number is paired with each other number exactly once, each number is used in exactly 4 of the sums. If you add all the sums together, you get: 0 + 2 + 4 + 4 + 6 + 8 + 9 + 11 + 13 + 15 = 72 4(-x) + 4x + 4a + 4b + 4c = 72 4(-x + x + a + b + c) = 72 -x + x + a + b + c = 18 a + b + c = 18 Since b and c are the largest numbers, their sum must be 15 a + 15 = 18 a = 3 Second largest sum (13) must be a + c a + c = 13 3 + c = 13 c = 10 a + b + c = 18 3 + b + 10 = 18 b = 5 Now we have three numbers: a=3, b=5, c=10 which accounts for the sums: 8, 13, 15 and which leaves us with 0, 2, 4, 4, 6, 9, 11 11 is the largest sum left, therefore x + c = 11 x + 10 = 11 x = 1 -x = -1 Numbers: -1, 1, 3, 5, 10

Answer 3

£72.50 increased by 23% =£89.175
£118.20 decresed per year by 17% for 3 years=£67.585

Answer 4

£72.50 increased by 23% = £72.50 (1.23) = £89.175

£118.20 decresed per year by 17% for 3 years
first year. . .A = £118.20 - £118.20 (0.17) = £96.924
second year. . .A = £96.924 - £96.924 (0.17) = £80.447
third year. . .A = £80.447 - £80.447 (0.17) = £66.77

Answer 5

You have the correct 1st answer, l think Drew rcds23. but its 12 points to the winner, 2 for answering, an 10 for Best answer-lol. Love Jo xx

Answer 6

72.50 pounds = 149.79 dollars (converted it as of todays rate) and that *.23 + 149.79 = 184.24 dollars

118.20 pounds = 244.21 dollars and that *.17 = 41.52 and then 244.21 - 3(41.52) = 119.65 dollars

Answer 7

a) 72.5 x 1.23= 89.175

b) 118.2 x 1.17^3= 189.31

satisfied ??

Answer 8

well i lost then havnt i cos i dont have a clue

Answer 9

(amount)* (1.23) = 89.175

(amount) (.83)^3 = (a) * .571787 = 67.5852