Step-by-step explanation:
for the demoninator to get to 4 to 12 u times by 3 (4,8,12) so you times the numerator by 3, 3 times 3= 9
so its 9/12
for 6 to get to 12, you times by 2, (6,12) so times the numerator by 2, 1 times 2 is 2
9/12-6/12= 3/12
Use photo math app it answer any math problem
Answer:
= 9.2 cm
Step-by-step explanation:
D = C ÷ π
= 29cm ÷ 3.14
= 9.2356
= 9.2 cm
Answer:
17 512 dm3 27 28 dm3 37 43 dm3 47 52 92 cm3 57 42 m3
Step-by-step explanation:
17 volume= 8x8x8= 512 dm3
27 volume= 3.5x4x2= 28m3
37 volume= 4x2, 5x4.3= 43 dm3
47 volume= 18x14x21= 5292 cm3
57 volume= 4x3x3.5= 42 m3
the volume cuboid = length x width x height )
Answer:
and 
Step-by-step explanation:
the perimeter of a rectangle is given by the following equation:

if a rectangle has a perimeter of 76cm and its length is 5 plus the double of its width we can use a system of equations to find the length
, and the width
.
For the perimeter of the rectangle
where
is its length, and
is its width, 76 is the perimeter of the rectangle in cm.
We know that the lengh of the rectangle is 5 plus the double of its width, writing the equation:

Substituting the equation above in 

We got that the rectangle width is w=11cm
Substituting w in the equation 

We got that the rectangle length is l=27cm
Verifying the values obtained
with l=27 and w=11
Satisfying the equation