Answer:
z=12
Step-by-step explanation:
It is given that x varies jointly as y and z, it means
where, k is the constant of proportionality.
It is given that x=8 when y=4 and z=9
Divide both sides by 36.
The value of k is 2/9.
We need to find the value of z when x=16 and y=6.
Substitute x=16 and y=6 in the above equation.
Multiply both sides by 3.
Divide both sides by 4.
Therefore, the value of z is 12.
First, let’s figure out the total amount of money
$15 + $4 + $3 = $22
Okay, so now we know the total amount of money spent, so we can divide
22 ÷ 4 = 5.5
5.5 = $5.50
Here are the expressions:
(15 + 4 + 3) ÷ 22 = 5.5
22 ÷ 4 = 5.5 (or 5.50)
Therefore, each friend owes $5.50
Hope this helps you
-AaronWiseIsBae
Brainliest would be appreciated
slope = change in y / change is x
slope = rise / run
change in y = -1 (goes down 1)
change is x = 4 (goes right 4)
slope = -1/4
y-intercept, when x = 0
y-intercept = 1 = (0,1)
The arrangement should be based on the decreasing degree of the terms which may be determined by the variable x as it should come first in alphabetical order. The polynomial is then,
10x³ + 2x²y + 2xy^4 - 3y²
The degree is equal to the sum of the exponents. Thus, the answer is 5 and it is letter D.
