Hi.
Let's assume that the average person has 3 meals a day. No snacks :(
3 · 7 = 21
This is in the tens.
The answer is B.
Let me show u one in detail.
First we have to find the common ratio. We do this by dividing the second term by the first term.
ur first problem...
12/3 = 4...so the common ratio is 4
now we use the formula
an = a1 * r^(n-1)
n = term u want to find = 15
a1 = first term = 3
r = common ratio = 4
now we sub
a15 = 3 * 4^(15 - 1)
a15 = 3 * 4^14
a15 = 3 * 268435456
a15 = 805,306,368 <== ur 15th term
thats all there is to it...and, of course, u can always look on the internet for a geometric sequence calculator...to check urself...lol
11 minutes + 4 minutes more yesterday = 15 total minutes
Answer: 15 minutes
Answer:
205 minutes
Step-by-step explanation:
If Monica has already practiced 18% of her time, we know that she has practiced 
. If this 18% corresponds to 45 min, we can have the following equation: 
. We can rearrange the equation to find the value of x by doing 
, so she practices 250 min every Wednesday. If we subtract the time she has already practiced (45 min) we find out she still has to practice more 205 min.
