Answer: The first equation should be multiplied by 9 and the second equation by −4, to eliminate the y-terms and solve for x in the fewest steps.
Step-by-step explanation:
Given : Equation (1) 5x − 4y = 28
Equation (2) 3x - 9y = 30
to eliminate the y-terms and solve for x in the fewest steps, we should multiply equation (1) by 9 and equation (2) by -4 such that
9(5x − 4y) =9 (28)⇒45x-36y=252
-4(3x - 9y) = -4(30)⇒ -12x+36y= -120
Now adding both equations, y-term eliminated and we get, 45x-12x=132
⇒33x=132⇒x=4.
x-4=x(2)
x-4=2x
+4 +4
8 = 6
lilly has 8 stamps and mackenzie has 6
Answer:
Plz mark brainlest!
Step-by-step explanation:
Distribute copies of The-Scoop-on-Ice-Cream Planning Sheet, and review the information about the three ... What would happen to your results if chocolate chip ice cream were included and half the people who picked vanilla were to switch to chocolate chip? o ... cream, how many half-gallons of ice cream will they serve? 2/15. Hope this helps! Ask me anything if you have any quistens!
Supposing the ISS travels at a constant speed, then use the relation,

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