Answer:
144
Step-by-step explanation:
1×2×3×4×x=48x<100
x<100/48
or x<25/12
but x is an integer
so x=1,2
48×1=48
48×2=96
reqd. sum=48+96=144
3x^2
+ 2x - 5
- 4 + 7x^2
—————
/combine like terms (3x2 + 7x2, -5 and -4, and 2x is alone so we leave it as it is)
—————
10x^2 + 2x - 9
The correct question is
<span>Brett made a scale drawing of a rectangular room in his house. The actual length of the room is 12 4/5 ft. The scale used to make the drawing was 1/4 in.=1 ft. What is the length, in inches, of the room on the drawing?</span>
we know that
scale=measure in the drawing/measure in the actual
measure in the drawing=measure in the actual*scale
in this problem
scale=1/4 in/ 1 ft-----> 1/4
measure in the actual=12 4/5 ft-----> (12*5+4)/5----> 64/5 ft
so
measure in the drawing=(64/5)*(1/4)----> 3.2 in
the answer is
the length, in inches, of the room on the drawing is 3.2