Answer:
x=8 lol this is so easyndiewkkwwkwkwkw
28
Step-by-step explanation:
20+8= 28
C is the answer
w = 4
you would do this by re-arranging the equation
6 = 5w-10-w (move w to the other side)
6 = 4w-10 (because 5w-w = 4w)
6+10=4w (move 10 to the other side)
16 = 4w (add 6 and 10)
4 = w (divide both sides by 4)
81
27 total of pupils.
girls 1×27=27
boys 2×27=54
total 54+27=81
Square root =
remember :
x² = ± a
x = ña
.
x = ñ25
x = ±5
• x = 5 and -5
