Answer:
-2x +4 = 20
Step-by-step explanation:
given
by making x the subject, you need to subtract 4 from 20
thus
and also you need to divide through by -2
Answer:
B
Step-by-step explanation:
Hope it helps and if you need explanation let it in the comments
Answer:
c
Step-by-step explanation:
Jasmine can work from 0 hours to 15 hours
You wanna get the y by itself. So you will subtract 11.9 then move it to the other side. so that is 10.5y = -11.9x +178.5. Then divide everything by 10.5. Then you get y = -11.9x/10.5+17. 11.9x/10.5 is because you cant put 10.5 into 11.9 evenly so you leave it as a division problem.
Equation
(3x21)+(3x15)
Answer
$108