Answer:
-5x+7-(3x-2)
=-5x+7-3x+2
=-8x+9
Step-by-step explanation:
3 x 4(hours) = 12
60 - 12 = 48
At 4am the temperature was 48 degrees
The scale factor used is .5 because 7, 8, and 10 multiplied by .5 will equal 3.5, 4, and 5.
<span>-49 + -2x + 12x = 101 + -12x + 12x Combine like terms: -2x + 12x = 10x -49 + 10x ... 101 + 49 = 150 10x = 150 Divide each side by '10'. x = 15 Simplifying x = 15 </span><span>
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