J = Julie
B = Bryan
O = Joe
K = Kent
(J + B + O + K) / 4 = 63
J = .25O
B = O + 10
K = O - 18
Substitute:
((.25O) + (O + 10) + O + (O - 18)) / 4 = 63
(3.25O - 8) / 4 = 63
3.25O - 8 = 252
3.25O = 260
O = 80
K = O - 18
K = 80 - 18
K = 62
B = O + 10
B = 80 + 10
B = 90
Therefore,
B + K = 152
Since, in this case, we have 4 options then you just need to substitute each number.
A. y = 5/x
B. y = 14/x
C. y = 9/x
D. y = 3.5x
We know that x= 2 when y=7. So...
A. y = 5/x
7=5/2
7=2.5
This is false.
B. y = 14/x
7= 14/2
7=7
This is right, So True.
C. y = 9/x
7=9/2
7=4.5
False
D. y = 3.5x 7=3.5(2)
7=7
This one is also true.
In this case we look for definition.
he statement " <span>y </span>varies inversely as <span>x </span>means that when <span>x </span>increases, <span>y </span>decreases by the same factor. In other words, the expression <span>xy </span>is constant:
xy = k
where k is the constant of variation.
We can also express the relationship between x and y as:
y = k/x
where k is the constant of variation.
Answer:
5 whole number 3 over 5
Step-by-step explanation:
<u>(</u><u>4x7</u><u>)</u>
5
=<u>28</u>
5
=5 3/5
The answer is 21-(-34)=13
Answer:20
Step-by-step explanation: