Someone help me figure out where the 2250 comes from.
It says use distributive properties to get it, but when I use distributive properties, 2250 is not the answer
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@Alle'Oop
With the distributive property, because the r is attached to the .75........ you multiply each item separately.
You multiply 3000 by 1.....which equals 3000.
Then you multiply 3000 by .75r..........which equals 2250r.
This gives you an equation of 3067.50=3000 + 2250r.
To make it easier to process, I'd just switch it around to 2250r + 3000=3067.50
Same thing, just makes the math clearer.
So, If 2250r +3000=3067.50............then you have to isolate the r by subtracting 3000 from the left side of the equal sign......and then add it to the 3067.50 on the right side of the equal sign.
It reads 2250r +3000-3000=3067.50 + 3000
This results in 2250r=6067.50.
Divide 2250 on both sides to isolate r........and r=2.696666666666666.
Rounded up would be 2.70.
