Answer:
Step-by-step explanation:
There are 150 students in grade 8
Write the ratio of grade 8 students in its lowest terms
-4 < 4(6y - 12) - 2y
<em><u>Distributive property.</u></em>
-4 < 24y - 48 - 2y
<em><u>Combine like terms.</u></em>
-4 < 22y - 48
<em><u>Add 48 to both sides.</u></em>
44 < 22y
<em><u>Divide both sides by 22.</u></em>
2 < y
The value of y is greater than the value of 2.
I'm not sure what the question is but I think your asking 150-85=65
For the first one c-9=(2)(4)+6
You are gonna multiply 2 and 4 first, 2*4=8. Now you have c-9=8+6. 8+6=14. So now the equation is c-9=14. Now we are going to add 9 to both sides. So c=23
For the second equation 10+y=90. We are going to subtract 10 from both sides. So, y=80.
Third, add 4 to both sides. a=10.
Fourth, subtract 8 from both sides. d=-9
Fifth, 5+2(3+4)=-x.
First we are going to add 3 and 4. 3+4=7. 5+2(7)=-x. Next we are going to multiply 2 and 7. 2*7=14. 5+14=-x. 5+14=19. So our equation is 19=-x. Next we are going to multiply both sides by -1. Making our final equation x=-19.
c=23
y=80
a=10
d=-9
x=-19
I hope that helps, if you need any further explanation just ask.<span />