Answer:
n = -1
Explanation:
First we need to distribute the -2 throughout the variable getting us to
-12 - 14n = 3n + 5
Then we need to move the variable n to one side and isolate it. To do this, subtract 3n from both sides and add 12 to both sides.
-17n = 17
Now, we need to remove the co-efficient from n, so we need to divide both side by -17.
n = -1
Answer:
Always
Step-by-step explanation:
if two points lie in a plane, then the entire line containing those points lies in that plane
Answer:
Inside the jar there's 16 nickels and 35 quarters.
Step-by-step explanation:
Since there are only nickels and quarters in the jar, the sum of the number of nickels and the number of quarters inside it must be equal to the total number of coins in the jar. So
nickels + quarters = 51
We know the total value inside the jar, to obtain this value we must multiply the amount of each kind of coin by it's value and sum it. So we have:
0.05*nickels + 0.25*quarters = 9.55
We now have two equations and two variables, so we can solve them as follows:
nickels + quarters = 51
0.05*nickels + 0.25*quarters = 9.55
From the first equation:
nickels = 51 - quarters
0.05*(51 - quarters) + 0.25*quarters = 9.55
2.55 - 0.05*quarters + 0.25*quarters = 9.55
0.2*quarters = 9.55 - 2.55
quarters = 7/0.2 = 35
nickels = 51 - 35 = 16
Inside the jar there's 16 nickels and 35 quarters.
Sorry if this doesn't help
This is my work from a while ago
TV price less sale price:
$168.90 - (0.15 × $168.90) = $143.565
Total TV price with sales tax:
$143.565 + (0.05 × $143.565) = $150.74