9 (a - b) + 5 (2a - 2b)
mutiply the first bracket by 9
(9)(a)= 9a
(9)(-b)= -9b
mutiply the second bracket by 5
(5)(2a)=10a
(5)(-2b)= -10b
9a-9b+10a-10b
9a+10a-9b-10b ( combine like terms<em>)</em>
Answer : C. 19a - 19b
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I think 1 is your answer Because 3 points will determine a plane.
Answer:
9.6
Step-by-step explanation:
Step 1:
Find the rate of proportion
We can do 12/10 to find how many minutes it takes her to read 1 page, or 1.2.
Step 2:
Multiply 1.2 by 8 to get 9.6
<em>ALTERNATIVE METHOD:</em>
Divide 10 by 8 to get 1.25. Then divide 12 by 1.25 to get 9.6
4/1 is a greater rate of change because it is the same as 4. A whole number will always be greater than a fraction and also the fraction is negative which makes it even smaller than a regular fraction. I hope this answers your question! :)