Here is the answer
1,3 and 57
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Answer:
i) around 41.7 kg
ii) 72 books
Step-by-step explanation:
i) if 108 books are 30 kg then how much is the mass for 150? You cross multiply so 150 multiply by 30 and 108 multiply by x (the unknown mass). you will get 4500=108x and then 4500/108 is the unknown mass.
ii) use the same way as above.
We can use quadratic formula to determine the roots of the given quadratic equation.
The quadratic formula is:

b = coefficient of x term = 12
a = coefficient of squared term = 4
c = constant term = 9
Using the values, we get:
So, the correct answer to this question is option B
Answer:
i believe its c but im not sure
Step-by-step explanation:
Answer: x = 7 and y = -17
Step-by-step explanation:
Opposite sides of parallelograms are equal.
-5y + 3 = 88
-5y = 85
y = -17
10x - 7 = 63
10x = 70
x = 7