Answer:
1) -4
2) 1/4
Step-by-step explanation:
8x + 2y = 7
-8x -8x
<u>2y</u> = <u>-8x + 7</u>
2 2
y = -4x + <u>7</u>
2
Each brick is .4 inch and the whole thing is 5.4 inches tall. So the height over the size of each brick will give you the total number of bricks.
5.4/.4
=13.5
13 1/2 and a half bricks were used to make the model.
Hope this helps :)
Answer:
distance is 5 units
Step-by-step explanation:
plug in values
Answer:
The cube must be 21.125 feet long.
Step-by-step explanation:
David can completely cover a cube of side length equal to 2 feet, using 16 quarts of paint.
With this we make a conversion factor:
feet/quarts = 0.125 feet/quarts
This means that with each quart of paint you can paint a 0.125-foot long cube
We need to know how big is the length of a cube that can be covered with 169 quarts of paint
Then we use the conversion factor found earlier

The cube must be 21.125 feet long.