The original equation log 0.0001 = -4 assumes the base of the logarithm is 10, so the exponential form is 10^ -4 = 0.0001
I'm not sure if this is right but you can set up an equation and solve to find Maggie's age:
Maggie's brother's age = b
Maggie's age = m
b = 12 - 3m
44 = 12-3m
12-3m = 44
-12 -12
-3m = 32
÷ 3 ÷3
m = 10.67
So this would be Maggie's age
I hope this helped :)
Answer: She isn't correct.
Step-by-step explanation: The BODMAS rule must be strictly followed and as such gives different answers to the two expressions.
(12-3)*2 basically gives:
9*2 (Dealing with the bracket first)
18.
While 12-(3*2) while dealing with the bracket first will give:
12-6; which would eventually give
6.
$3.90
You have to take $1.16 and multiply it by 2 so that you get the price for 4 pounds then divide 1.16 by 2. Then you have to add together the totals and you'll get the price for 5 pounds.
Or
You could take $1.16 divide it by 2 to get the unit price then multiply (or add it together 5 times) it by 5 to get a total of $3.90
