First, lets convert our dimensions into cm.
2*2.54 = 5.08 cm.
1.5*2.54 = 3.81 cm.
Now, lets multiply by for the get the dimensions of the original painting in inches.
5.08*40 = 203.2 cm
3.81*40 = 152.4 cm
Finally, lets divide our new dimensions.
203.2/2.54 = 80 in.
152.4/2.54 = 60 in.
The dimensions of the original painting is 80 in. by 60 in.
It should be y= 6 over 5x +3
12 characters per inch . . . 12 inches in a foot . . . 3 feet in a yard
so 12 x 12 x 3 = 432 characters in a yard
My teacher always taught me to set these problems up like a proportion
is / of = % / 100
24/ x = 16 / 100
16x = 2,400
Divide 2,400 by 16 and you get 150.
150 is the correct answer.
His answer works ... it gives 150, which is the same as (60 + 90) ... but he didn't deliver exactly what the problem asked for.
It asked for the <u>GCF</u> to be outside the parentheses, and he put '3' there.
'3' is certainly one common factor of 60 and 90, but it's far from being the
greatest one.
The GCF of 60 and 90 is actually 30 . So the absolutely positively technically correct response to the instructions in the problem would be 30(2 + 3).
