Chandlers salary increased by 5 percent, to find this answer you take his new salary and divide it by its old and the decimal is the percentage increase
Answer:
$15 and 3600ft^2
Step-by-step explanation:
C) There are 16 white tiles used. The unit cost of a white tile=240/16=$15
E) The cafeteria area consists of 36 tiles of dimensions 10 ft x 10 ft, so the area of the floor is 3600ft^2
Answer:
Step-by-step explanation:
Given
Required
The general term
The given sequence is geometric.
So first, we calculate the common ratio (r)
So, we have:
The function is then calculated using:
This gives
Given the equaiton system, we can use the method of solving two equations to find the answer:
x+y=80
5x+8y=430
Break it down into two equaitons:
x+y = 80
y = 80 - x ...(1)
5x + 8y = 430...(2)
We can then use the method of substitution to find the answers:
Put (1) into (2),
5x + 8(80-x) = 430
5x + 640 - 8x = 430
-3x = 430 - 640
-3x = -210
x = 210/3
x = 70...(3)
Now thay we find x, we can put it into the first eqaution to find y:
x+y = 80
70+y = 80
y = 10
Therefore, x= 70 and y = 10.
Hope it helps!
a = no b = yes c = no
Sofia has a greater number of marbles than Tim.