9514 1404 393
Answer:
= x + y + 20
Step-by-step explanation:
There are a couple of ways you could write this.
friend sales + your sales
= (14 +x) +(y +6)
= (x +14) +(6 +y) . . . . commutative property used twice
= x +14 +6 +y = x +20 +y
= x + y + 20 . . . . . . . commutative property used again
__
first-day sales + second-day sales
= (14 +y) + (x +6)
= (y +14) +(6 +x) . . . . commutative property used twice
= y +14 +6 +x = y +20 +x
= y +x +20 . . . . . . . . commutative property used again
= x + y + 20 . . . . . . . and again
_____
<em>Additional comment</em>
We also used the associative property (to move parentheses) and the properties of addition of integers to simplify the sum. We have chosen to put the variables in lexicographical order, a sort of standard.
Answer:
Step-by-step explanation:
Isolate x on one side of the equation.
<u><em>DISTRIBUTIVE PROPERTY:</em></u>
⇒ A(B+C)=AB+AC
⇒ A(B-C)=AB-AC
A=5
B=2x
C=7
5*2x+5*7
Solve.
Multiply.
5*2x=10x
5*7=35
10x+35
Therefore, the final answer is 10x+35.
Speed=6 miles per hour
Distance =9.6 miles
Speed =distance /time
Time=distance/speed=9.6/6=1.6 hours
Answer:
2 dollars haha
Step-by-step explanation:
4-2
Answer:
Q-31=56
Step-by-step explanation: