The answer is 7
If you cancel 1 with -1 you will only have 3y=21 and 3 x 7 is 21 so y=7
Answer:
Step-by-step explanation:
GIVEN: A box with no top is to be constructed from a piece of cardboard whose length measures more than its width. The box is to be formed by cutting squares that measure on each side from the four corners and then folding up the sides.
TO FIND: If the volume of the box will be , what are the dimensions of the piece of cardboard.
SOLUTION:
Let the width of cardboard be
length of cardboard
As box is formed by cutting squares from corners of cardboard
length of cardboard
width of cardboard
height of cardboard
volume of cardboard
solving we get
width of cardboard
length of cardboard
height of cardboard
<span>Mark drew Two lines that form a right angle.what words describe the lines that mark drew.
Mark drew perpendicular lines</span>
Answer:
First option and Last option are the correct choices.
Step-by-step explanation:
Thanks!