What I would do is first find out how many pounds are in a single bag of quartz. and do the same for marble. to achieve this divide the number for quartz by three, then doing the same for marble. then take the number you found per bag and multiply it by the number of bags.
Answer:
The family bought 8 hot dogs and 5 hamburguers.
Step-by-step explanation:
We'll call the amount of hamburguers as 'x' and the amount of hot dogs as 'y'. Since the family bought 13 hot dogs and hamburguers we have:
x + y = 13
The family spent a total of 22.5, if each hot dog costs 1.25 and each hamburguer costs 2.5, we have:
2.5*x + 1.25*y = 22.5
We now have two equations and two variables so we can build a system as state bellow:
x + y = 13
2.5*x + 1.25*y = 22.5
From the first equation we have x = 13 - y. We can use this value on the second equation to solve for y:
2.5*(13 - y) + 1.25*y = 22.5
32.5 - 2.5*y + 1.25*y = 22.5
-2.5*y + 1.25*y = 22.5 - 32.5
-1.25*y = -10
y = 10/1.25 = 8
So x = 13 - y = 13 - 8 = 5.
The family bought 8 hot dogs and 5 hamburguers.
Mean is the average so add the numbers and divide by 9.
Mean = 25
First, we are going to find the painted area of his house. We know that the total area he needs to paint is 4000 square meters, so 4000 is the area of this house. Now, to find the 62.5% of that area, we are going to multiply it by
:
Painted area=
Now, to find <span>rate, in square feet per hour, we are going to divide the painted area by the number of hours:
Rate=</span>
We can conclude that Kyler paints at a rate of
434.78 square feet per hour.