Answer:
-10x + 1.5
Step-by-step explanation:
-2(5x-0.75)
-10x+1.5
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#
The watch costed $400 before the discount.
76 * 100 = 7,600
7,600 / 19 = 400
Answer: 40 bales of hay
Step-by-step explanation:
You might have made an error the first time you solved for x. I got x = -0.5.
When you have your log base 4, the way you cancel that out is by making 4 the base on both sides, so you get 4^(log4) to reduce to 1, and you're left with:
2x + 3 = 4^(1/2) ... Simplify
2x + 3 = 2
2x = -1
x = -1/2
If you plug that back in, everything checks out. Maybe double check your use of logarithm/exponent properties?
