Answer:
the large box weight is 6.50 kg and the small box weight is 13 kg
Step-by-step explanation:
The calculation of each type of box weight is shown below:
Let assume the large box be x
And, the small box be y
Therefore
3x + 8y = 91.......(i)
5x + 2y = 78.......(ii)
Multiply by 5 in equation 1 and by 3 in equation 2
15x + 40y = 455
15x + 6y = 234
Now deduct the last equation from the above one
34y = 221
y = 6.5 kg
For x, it is
3x + 8(6.5) = 91
3x + 52 = 91
3x = 91 - 52
3x = 39
x = 13 kg
Hence, the large box weight is 6.50 kg and the small box weight is 13 kg
Answer:
x = 0, 2
Step-by-step explanation:

The answer of 4*5384 is 21536.
6×6×2=72 because 6×6=36 then do 36×2=72 so 6×6×2=72
P = 2( l + w)
Length: 2y
Width: y - 4
P= 22 inches
2(2y) + 2(y - 4) = 22
4y + 2y - 8 = 22
4y + 2y = 6y and add (-8) on both sides of the equation to equal: 6y = 30
Divide 6 from both sides of the equation and you get: y = 5
Check:
4(5) + 2(5) - 8 = 22
20 + 10 - 8 = 22
30 - 8 = 22 ✅