Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given: 
To solve this equation, we need to isolate 
on one side of the equation algebraically. I see that we have like terms, but they are on opposite sides of the equal sign. Let's add 
to both sides.
To isolate x, divide both sides by 7.
Answer: 10
Step-by-step explanation:(-x)(5y)(-2x)
=(-5xy)(-2x)
=10x^2y
therefore,the coefficient of the equation is 10.
Step-by-step explanation:
x = number of novels
y = number of dictionaries
x = 8y
88x + 208y = 13680
now, using the identity of the first equation in the second equation gives us
88(8y) + 208y = 13680
704y + 208y = 13680
912y = 13680
y = 13680/912 = 15
x = 8y = 8×15 = 120
so, there were 120 novels and 15 dictionaries sold.
The table of the tolls for Henderson is the direct variation since the cost is proportional to the miles traveled.
