Answer:
the given equation is y=4/7x
reciprocating both sides you get y/x =7/4
now x and y are directly porportional to each other so
x=ky where k is the constant
or x/y=k ......................(2)
equating 1 and 2
k=7/4
Step-by-step explanation:
Answer:

Step-by-step explanation:
Sum of X and 8: 
Product of seven and 10: 
Put them together:

Answer:
Already answered but oh well
It's -4
7x+(x-4)(X+5)-5x
7x+(X*2+ 5x-4x-20)-5x
7x+(X*2+ x-20)-5x
X*2+3x-20
Answer:
60
Step-by-step explanation:
product means multiplication
therefore 6×10=60