I am going to use C to represent cookbook and N to represent N. I find that easier to remember which is which.
Day 1: 5C + 3N = 167
Day 2: 3C + 1N = 89
We need to solve one of these equation for either the C or N. I always choose the easiest one! Day 2 looks like the one.
3C + 1N = 89 (I am doing to solve for N because we won't have a fraction)
1N=89-3C
N=89-3C
Now we take this solution for N and put it into our first equation.
5C + 3(89-3C) = 167 (We need to distribute)
5C + 267 - 9C = 167 (Use subtraction to move C values to the right and numbers to the left)
267-167 = 9C-5C
100 = 4C
25 = C $25 for the Cookbooks.
Now, we have to go back and solve for N by putting $25 in for C in the second equation.
N=89-3(25)
N=89-75
N=14 dollars for each novel.
Check by putting both back into the first equation:
5C + 3N = 167
5(25) + 3(14) = 167. It checks out!
<span>There are 366 days in a leap year
In a week there are 7 days, so total no of days= 7*52=364 days.
Here 52 represents number of weeks.
Now last two days can be combination of two days say like Monday and Tuesday or Tuesday and Wednesday and so on.
So in total 7 combinations are possible.
Out of there can be 3 combinations containing Thursday or Friday.
Hence, the probability is 3/7.
Hence the answer is 3/7</span>
Answer:
No
Step-by-step explanation:
<span>The answer has to be "n ≤ 6" because the greatest "n" CAN be is 6, so "n can=6", but it can also be smaller.</span>
