Answer:
n = -4/5
Step-by-step explanation:
-3/4 n + 1/8 n= 1/2
use the rules of signs for multiplication
-3/4 n + 1/8 n= 1/2
multiply both sides 8
-6n + n = 4
collect like terms
-5n = 4
divide both sides by -5
n=-4/5
or alternative form
n=-0.8
If 7+9=16, then 7+9=11+5 and 11+5=16.
Answer:
(t−7)(t+11)
Step-by-step explanation:
Let's factor t2+4t−77
t2+4t−77
The middle number is 4 and the last number is -77.
Factoring means we want something like
(t+_)(t+_)
Which numbers go in the blanks?
We need two numbers that...
Add together to get 4
Multiply together to get -77
Can you think of the two numbers?
Try -7 and 11:
-7+11 = 4
-7*11 = -77
Fill in the blanks in
(t+_)(t+_)
with -7 and 11 to get...
(t-7)(t+11)
When you divide 36.89/8.6, you get should $4.29 for 1 gallon of gas.
