Answer:
3691 pounds
Step-by-step explanation:
Given: Colin invests £2350 into a savings account. The bank gives 4.2% compound interest for the first 4 years and 4.9% thereafter
To find: Amount that Colin will have after 10 years
Solution:
Let P, r, n denotes principal, rate of interest and time period
For the first 4 years:
Total amount after 4 years = 
For the next 6 years:
Total amount after 6 years = 
Answer:
5x+10
Step-by-step explanation:
let f(x)=(x-10)/5=y
now write 'x' in term of y
i.e, x-10=5y
i.e, x=5y+10
now replace y with x to get required inverse of f(x)
=5x+10
Answer:
-10x^2 +9+8x^2-5x+7=-2x^2-5x+16
Let's translate each sentence into "Math".
Pineapple = p
Orange = x
is means equal
Pineapple is 7 times as heavy as an orange: p = 7x
Pineapple weighs 870 grams more than orange. p = 870 + x
Substitute p = 7x into the second equation:
7x = 870 + x
Subtract x from both sides
6x = 870
divide by 6
x = 145
The orange weighs 145 grams.
The pineapple weights 7 times the orange = 7(145) = 1015 grams.
Answer:
No Solutions
Step-by-step explanation:
