Answer:
30
Step-by-step explanation:
2/3 = x/18
2*18 = 3x
36 = 3x
x=12
so there are 12 boys
12+18=30
Answer:
138, 460 m²
Step-by-step explanation:
How To Find Volume of Pyramid With Slant Height? If 'x' is the base length, 's' is the slant height, and 'h' is the height of a regular pyramid, then they satisfy the equation (the Pythagoras theorem) (x/2)2 + h2 = s2.
Answer:
4
Step-by-step explanation:
y=mx+c,m(4) is the slope
Answer:
-10
Step-by-step explanation:
-1+3= -2
-2 times -5= -10
3 times -1= -3
-3 -7=-10