Answer: 6 years
Step-by-step explanation:
Formula to calculate compound amount: 
, where P= Principal , r=rate of interest, t= time
Given: P = £400, r = 3% = 0.03 , A= 475
Required equation: 
Taking log on both sides , we get
Hence, he needs to invest the money for 6 years to get atleast £475.
C. $135, 1/4 of 60 is 15 and add that on top of 60x2
Vinegar*16=water
water/16=vinegar
A.
if vinegar is 1/4 then
1/4 times 16=4=water
4 cups
B. 8oz=1cup
80 oz water
water/16=vinegar
80/16=5oz=vinegar
5oz
C.
1qt vinegar
1 times 16=16
16 quart water
find total
vinigar+water=1+16=17 quarts
-13 +3x +8 = 3x + (-5)
-9x + 15 - x -10 = -10 x + 5
The other two don't match
AMOUNT DEPOSITED: $15k ($15,000)
INTEREST RATE PER YEAR: 0.07% (7%)
STEPS:
→Multiply the amount deposited ($15k) by the interest rate per year (7%).
15,000 * 0.07
= $1,050 (interest earned in 1 year)
→Multiply the interest earned from the first year ($1,050) by the amount of years that you want to calculate (3 years)
$1,050 * 3
=3,150 (interest earned in 3 years)
→ Add the interest earned (in 3 years, in this particular equation) to the amount that you deposited ($15k)
$15,000 + $3,150
=$18,150
FINAL ANSWER: $18,150
