X/2+1=y subtract 1 from both sides
x/2=y-1 multiply both sides by 2
x=2y-2
Answer:
Step-by-step explanation:
percent increase = ((new number - original number) / (original number)) * 100
= ((910 - 650) / 650) * 100
= (260 / 650) * 100
= 0.4 * 100
= 40% <===== Maki's increase
By setting up a system of equations we can easily solve this problem. Let's denote Jane's working hours with x and Jack's working hours with y. Since they don't want to work more than 65 hours, the first equation is x+y=65. The second equation is 14x+7y=770. By solving this system of equation , we find that y=20 hours, which is Jack's maximum working hours.
Answer:
4.1 sec
Step-by-step explanation:
-9.8t^2 +38.2t + 6.5 = 0
t = 
= 
= 
= 
= 
= 4.1
