Answer:
4, 22 See below
Step-by-step explanation:
2x + y = 30
5x + y = 42
Subtract the first from the second
3x = 12
x = 4 so socks cost $4
Put that into one of the original equations
2x + y = 30
2(4) + y = 30
8 + y = 30
y = 22 slippers cost $22
x=ferns ; y=ivy
12x+8y=260
6x+15y=240
x=60 -(15/6)y
12(60+ (15/6)y + 8y = 260
x=60 -(15/6)y
720 - 30y + 8y = 260
x=60- (15/6)y
-30y +8y= 260-720 ==> -22y= -460
x=60 -(15/6)y
y= (-460)/(-22)= 20.9090909091
y=20.90
x=60 -(15/6)×20.90= 7.75
×(ferns)=7.75$
y(ivy)=20.90$
When the ball left the ground, time t=0.
Plugging this into the equation,
h=0.5m.
Hope this helps :)
Answer:
432 square inches
Step-by-step explanation:
The 27 smaller cubes each have a dimension that is 1/∛27 = 1/3 the dimension of the larger cube. That is, each is a 2" cube. Their total surface area is ...
(27 cubes)(6 faces/cube)((2 in)²/face) = 648 in²
The painted surface area of the larger cube is ...
(6 faces/cube)((6 in)²/face) = 216 in²
Subtracting the painted cube area from the total cube area of the smaller cubes, we have an unpainted area of ...
648 in² -216 in² = 432 in² . . . unpainted area