216+7c=517; 43 copies .... of he made 216 a week from the newspaper and and made 7 dollars per copy sold of his book it should be 216+7c=517 then you subtract 216 from both sides of the equation so 7c=301 then divide 301 by 7 = 43
Answer:
b = 18 units
Step-by-step explanation:
Answer:
x = 23/5 OR 4.6
y = 157/15 OR 10.46
Step-by-step explanation:
x = 4x + 6x - 33 = 13
> 10x - 33 = 13
> 10x = 13 + 33
> 10x = 46
y = 4 (25/5) + 3y = -13
> 92/5 + 37 = -13
> 3y = -13 - 92/5
> 3y = - 157/5
Answer:
4
Step-by-step explanation: 4/1