Remember that you can do anything to an equation as long as you do it to both sides except divide by zero
so you can add like terms like this
you can add similar things like 1+3 and m+2m and m^2+2m^2 but not unlke things like 1+m or m+m^2
so m+2m=1m+2m=3m so
r-4+6r=3+8r
use commutative property to move numbers around (a+b=b+a)
group like terms
r+6r-4=3+8r
add like terms
1r+6r-4=3+8r
7r-4=3+8r
subtract 7r from both sides
7r-7r-4=3+8r-7r
0r-4=3+1r
-4=3+r
subtract 3 from both sides
-3-4=3-3+r
-7=0+r
-7=r
r=-7
Answer:
11) 
12) 
13) 
14) 
15) 
16) 
Step-by-step explanation:
For these problems I used the pythagorean theorem:
and SOHCAHTOA
Sin = 
Cos = 
Tan = 
11)
First find the length of the bottom side by using Cos



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




12)
Find the length of the bottom side using Cos



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




13)
Find the length of the other side by using Tan



Then plug it into the formula for the pythagorean theorem to find the hypotenuse




14)
(This is probably an easier way to do these problems)
Find the hypotenuse by using Cos (
)




15)
Find the hypotenuse using Sin (
)



16)
Find the hypotenuse using Cos (
)




Answer:
.081 hours per dollar
$12.333 dollars per hour
Step-by-step explanation:
I'm a bit confused whether you just want hours per dollar or also dollars per hour, so I'll answer both.
First, for the dollars per hour, you want to do 74 divided by 6 equals 12 1/3. So each hour you get paid $12.333
Fort the hours per dollar, you do 6 divided by 74 equals .081.
Answer:
7600 is the answer my email is
desireegonzalezserrano at g ma il . co m
Step-by-step explanation:
Answer:
87.5%
Step-by-step explanation: