Answer:
Answer is D) I and II only.
Step-by-step explanation:
If C=5/9(F-32) that means that the temperature is increased by 5/9 of a degree every one F degree. Also II is right because of the laws of thermodynamics.
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1) 18h = 252
You divide each side by 18, so you can get "h" alone on a side, and its value on the other side of the equation.
(18h)/18 = 252/18
h = 14 (Answer C)
2) 31d = 186.
Same Thing, you divide each side by 31, so you can get "d" alone on a side, and its value on the other side of the equation.
(31d)/31 = 186/31
d= 6 (Answer B)
3) 55c = 385
Again, same thing, You divide each side by 55, so you can get "c" alone on a side, and its value on the other side of the equation.
(55c)/55 = 385/55
c = 7 (Answer B)
4) 50w = 1050
You divide each side by 50, so you can get "w" alone on a side, and its value on the other side of the equation.
(50w)/50 = 1050/50
w=21 (Answer A)
As you can notice, they all follow the same steps: dividing by the coefficient of the variable both sides, so you can the variable alone on the first side of the equation, and its value on the second side.
Hope this Helps! :)
Answer:
90,92,94
Step-by-step explanation:
1st number= x
2nd number= x+2
3rd number= x+4
x+x+2+x+4= 276
3x+6= 276
3x=270
x=90
x+2= 92
x+4=94
hope this helps- i did this in class
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Answer:
tht looks so difficult
Step-by-step explanation:
Q(3) = -2(3)+2 = -4
r(q(3)) = (-4)^2-1 = 15
