Answer:
Stan needs about 50 of the 39 cm x 39 cm tiles
or about 155 of the 18 cm x 27 cm tiles
Step-by-step explanation:
Since we are asked to consider only matters of area, we need to calculate first, the area of the patio:
Patio area = 3 m x 2.5 m = 7.5 m^2
Now we consider what surface (in square meters - m^2) each type of tiles cover:
a) for the 39 cm x 39 cm tiles: 0.39 m x 0.39 m = 0.1521 m^2
b) for the 18 cm x 27 cm tiles: 0.18 m x 0.27 m = 0.0486 m^2
Therefore, to cover the area of the patio, the number of tiles type "a" needed is given by the quotient:
7.5 m^2 / 0.1521 m^2 = 49.3096 (about 50 tiles)
while for type "b" tiles the quotient gives:
7.5 m^2 / 0.0486 m^2 = 154.32 (about 155 tiles)
c = 7.50 + 2(x - 1) is the rule that gives cost for "x" hours of renting a boat
<h3><u>Solution:</u></h3>
Given that a boat rental charges $7.50 for the first hour and $2 for each additional hour.
<em><u>To find: Rule that gives the cost for x hours of renting a boat</u></em>
Let "x" be the total hours of renting a boat
"c" is the total cost for the boat rent
"f" is the fixed cost for boat rent for first hour
"v" is the cost for each additional hours of rent
"x" is the total hours of renting a boat
In the expression we have used "x - 1" to represent the additional hour of boat rent after first hour
Here f = $ 7.50
v = $ 2
Thus c = 7.50 + 2(x - 1) is the rule that gives cost for "x" hours of renting a boat
Answer:
z
Step-by-step explanation:
Monday= 4 hours
Tuesday= 6 hours
Wednesday= 5 hours
Thursday= 5 hours
Friday=7 hours
Total hours= 4+6+5+5+7= 27 hours
Gross pay= 27*$9.75= $263.25