1/4*x=2
multiply both sides by 4 to get x=8
a solution for this is to know what 10 is a fraction = 20/2
1/2=0.5 so (20+1)/2=21/2
1.25+2+11.5=14.75
14.75-12=2.75
this simplifies to 1/33/1/333
divide to get 333/33 = 10 3/33 = 10 1/11
add 7 to both sides, subtract 2x from both sides, and divide 3 from both sides to get x<4
Those aren't negative signs.
The problem says:
The hypotenuse of a 30° 60° 90° triangle is 13 cm. Find the area of the triangle in square centimeters.
3x=24
divide both sides by 3 to get x=8
uh. this is aops prealgebra 2 homework. If you're stuck, read the percent puzzles rules again. (I'm taking prealgebra 2 rn)
3^2=9 so 9^3(9)=9^27=a number wayyyyy too big
hint: use triangle inequality?
other hint that also works: draw a picture
+267 