Question:
The quantities x and y are proportional.

Find the constant of proportionality (r)
Answer:

Step-by-step explanation:
Given

Required
Determine the constant of proportionality (r)
Constant of proportionality (r) is calculated as

When

Substitute these values in the given formula

Convert both fractions to improper fractions

Multiply both sides by 


Reorder


Divide the numerator and denominator by 3


Convert to mixed fraction

<em>Hence, the constant of proportionality is </em>
<em></em>
Plug in x with -1

A negative number in parenthesis times an exponent is always positive.
8+3-7=4
Eh yo creo que no, si estoy mal los siento
Answer:
1 1/3
Step-by-step explanation:
-4 1/3 + 5 2/3 = -13/3 + 17/3 { change into improper form}
= { (-13) + 17 } / 3
= 4 / 3
= 1 1/3
Answer:
D: 13
Step-by-step explanation:
4k-7 = 2k+3
k=5
4(5)-7 = 13!
GI = 4k-7 which = 13