A brick wall is constructed with 20 rows of bricks. If the height of a brick is 3 7/8 inches and a mortar joint is approximately 5/8 inch, how heigh would the wall be? _______ inches
Does Anyone know how to do this one?
There are 20 rows of brick and 19 rows of mortar.
The total height would be:
20*(3 7/8)inches + 19*(5/8)inches
=??
70 1/2 ????
20*(3 7/8) + 19*(5/8)
=20*(31/8) + 19*(5/8)
=(620/8) + (95/8)
=715/8
=89 3/8
a wall in front of a house is shown below. if 3/5 of the wall is made from brick, how do you determine the height of the brick portion of the wall. 7 3/4 height and width 15 1/5?
To find the height of the wall, you need to calculate the combined height of the bricks and mortar joints in each row, and then multiply that by the number of rows.
First, let's find the total height of a single row. Each row consists of a brick and a mortar joint.
The height of a brick is given as 3 7/8 inches, and the height of a mortar joint is approximately 5/8 inch. To find the total height of a single row, you add the height of the brick and the height of the mortar joint:
Total height of a single row = height of brick + height of mortar joint
Total height of a single row = 3 7/8 inches + 5/8 inch
To calculate, convert the mixed number to an improper fraction:
3 7/8 = (8 * 3 + 7) / 8 = 31/8
Now add the fractions:
Total height of a single row = 31/8 inches + 5/8 inch
Combine the two fractions:
Total height of a single row = (31 + 5) / 8 inches
Total height of a single row = 36/8 inches
Simplify the fraction by dividing the numerator and denominator by their greatest common divisor (GCD):
Total height of a single row = 9/2 inches
Now that you know the total height of a single row is 9/2 inches, you can calculate the total height of the wall by multiplying it by the number of rows:
Total height of the wall = Total height of a single row * Number of rows
Total height of the wall = (9/2 inches) * 20 rows
Multiply the numerator by the number of rows:
Total height of the wall = (9 * 20) / 2 inches
Total height of the wall = 180/2 inches
Finally, simplify the fraction:
Total height of the wall = 90 inches
Therefore, the height of the wall would be 90 inches.