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!
REWARDING BRAINLY
Which question could be answered using a measure of center?
How many students got an A on their last math test?
If a wrestling team was put in order from lowest to highest weight class, in what weight class would the wrestler in the middle be?
What is the difference between the highest and lowest grades on last year’s Algebra I exam?
What is the range of shoe sizes in the middle school?
Answer:
Step-by-step explanation:
Alright, lets get started.
The given equation is :
Subtracting 1 in both sides
Dividing 2 in both sides
Taking log on both sides
Plugging the value of log e as 1
..................... Answer
Hope it will help :)
I hope this helps you
all pets 32+24+12=68
dogs/all pets
32/68
8/17
Answer:
d = 65t
Step-by-step explanation:
Distance in miles = 65 * the amount of hours
