Answer: no solution
Step-by-step explanation:
24x + 72 = 24x +12
-24x -24x
———————————
72=12
72 doesn’t equal 12 so the answer is no solution
Answer:
Answer: Do -7 + 7 and do the same to 10, (7 + 10). This is the first step in Isolating the variable.
Step-by-step explanation:
hope it's right
1. Natasha invests £250 in a building society account. At the end of the year her account is
credited with 2% interest. How much interest had her £250 earned in the year?
Solution: Interest = 2% of £250
= 2/100 x £250
answer = £5
2. Alan invests £140 in an account that pays r% interest. After the first year he receives £4.20 interest. What is the value of r, the rate of interest?
r/100 x £140 = £4.20
r = 100 x 4.20 / 140
= 420/140
= 3%
So the interest rate is 3%
C, D, and E would all be Statistical Questions.
