Answer:
x = 5
z =2
y =4.4
Step-by-step explanation:
y varies directly as x
y = kx
and inversely as z
y = kx/z
Putting in the numbers in the first line of the table, we can solve for k
13.75 = k * 25/4
Multiply by 4
13.75*4 = 25k
55 =25k
Divide by 25
55/25 = 25k/25
2.2 = k
Now we can fill in the table
y = 2.2 x/z
Row 2 we need to find x
1 = 2.2 x/11
Multiply by 11
11 = 2.2 x
Divide by 2.2
11/2.2 = 2.2x
5 =x
Row 3 we need to find z
18.7 = 2.2 *17/z
18.7 = 37.4 /z
Multiply by z
18.7z = 37.4
Divide by 18.7
18.7/18.7z = 37.4/18.8
z =2
Row 4 we need to find y
y = 2.2 *10/5
y = 22/5
y =4.4
Answer:
y = $28.75x
Step-by-step explanation:
Given that,
Tickets to a carnival cost $28.75 each.
We need to find y i.e. the cost of x tickets.
When the number of tickets are x, to find the cost of x tickets, we must find it by multiplying 28.75 and x i.e.
y = 28.75x
Hence, the cost of x tickets is equal to $28.75x.
Answer:
-5 divided by -1 would equal 5.
Step-by-step explanation:
A neative divided by a negative would equal a positive.
Answer:
Step-by-step explanation:
2/3 pi radians = 2/3 * 180 = 2 * 60 = 120 degrees
split triangle in half:
30, 60, 90 triangle
1/2 PR= 4 root 3
Answer:
Step-by-step explanation:
Complex numbers identity:
The complex numbers identity is:
Square of the sum:
In this question:
So
