Answer:
x - 3
Step-by-step explanation:
let's call the unknown number x to express its value that's three less than actual number we say x - 3
19:15 will be the new time
Answer:
a= 2/5
b= 30
c= 18
d= 3:2
e= No, because the fraction or ratio is the same, all you need to do is simplify it!
Enable M = Mary's age now So Mike's age is 3M 3M + 4 = 2 (M + 4) = 2M + 8 Now, subtract 2M from the two factors. then you definitely have: M + 4 = 8 or M = 4 examine: Mike is now 12. In 4 years, Mary would be 8 and Mike would be sixteen.
14x+7=-91
-7=-91-7
14x=-98
*14 *14
x= -1372
