Answer:
Volume of a cube = side * side * side
length of 1 side = cube root of 64 = 4 cm
Therefore, each picture is 4 cm by 4 cm
Step-by-step explanation:
1. The angles DCA and BCA are the same.
2. Angles DCA and BCA are not supplementary. Since the both of them add up to 90° (we know that angle c is equal to 90° because in a right square all angles are 90°) the angles would be complementary, not supplementary. Supplementary angles add up to 180°
Answer:
22.8
Step-by-step explanation:
the rectangular has :
the length CD =√[(3+3)²+(0-5)²]
= √(36+25) = √61 = 7.8
the width BC =√[(5-3)²+(3-0)²]
=√(4+9 =√13 = 3.6
so, the perimeter = 2(7.8 + 3.6)
= 2× 11.4 = 22.8
2x + y = 20
y = 20 - 2x
Substitute into second equation:
6x - 5(20-2x) = 12
6x -100 +10x = 12
16x = 112
x = 7
Plug back into first equation:
2(7) + y = 20
14 +y = 20
y = 6
Answer is x = 7 and y = 6
Answer:
Step-by-step explanation:
Let the number of small boxes = x
and the number of large boxes = y
Total number of boxes = 24
Therefore, equation will be,
x + y = 24 ------ (1)
Since, volume of the smaller boxes = 9 cubic feet
And the volume of larger boxes = 24 cubic feet
Therefore, total volume of the boxes = (9x + 24y)
Since combined volume of all boxes = 441 cubic feet
Therefore, equation will be,
9x + 24y = 441 ------ (2)
