l = w+8, (l+4) x (w-1) = lw, lw+4w-l-4 = lw, 4w-l-4 = 0, 4w = l+4, 4w = w+8+4, 4w = w+12, 3w = 12, w = 4, l=12
If the length is tripled but the width remains unchanged, then the area is tripled.
Yes. Except that there will be some combinations of changes to diameter and height which will leave the volume unchanged.
If the other dimensions (length and height) are left unchanged, doubling the width will double the volume.
The dimensions of a cuboid cannot be determined from its volume. You could, for example, double the length and halve the width: that would leave the volume unchanged but the dimensions will be different.
The decimal point moves 3 places to the right.
Suppose the dimwnsions of the rectangle are L and B Then area = LB. Now (L+10)*(B-5) = LB so that 10B-5L = 50 and (L-5)*(B+4) = LB so that -5B+4L = 20 Solving these two equations simultaneously, gives L= 30,B = 20
If the length is tripled but the width remains unchanged, then the area is tripled.
If all other dimensions are left unchanged, doubling the height doubles the volume.
Not enough information: Both the change in absolute terms, and the percentage change, would also depend on the original size of the cube.
Yes. Except that there will be some combinations of changes to diameter and height which will leave the volume unchanged.
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If the other dimensions (length and height) are left unchanged, doubling the width will double the volume.
The dimensions of a cuboid cannot be determined from its volume. You could, for example, double the length and halve the width: that would leave the volume unchanged but the dimensions will be different.
If only the length is changed and all other dimensions left unchanged, the volume will also triple.
When wavelength decreases, frequency increases, and when wavelength increases, frequency decreases. The product of (wavelength) times (frequency) is always the same number ... the speed of the wave. So when one of them changes, the other one must change in the opposite direction in order for their product to remain unchanged.
The decimal point moves 3 places to the right.
i got the answer!