Answer:
Step-by-step explanation:
Linear; can be written in the form y = 5x + 4
y = kx
'k' is the constant of proportionality, or otherwise known as constant of variation.
y = 90
x = 3
90 = k(3)
90 = 3k
3k/3 = 90/3
k = 30
The constant of proportionality is 30.
3.79 + .79 + .99 = 5.57
So the entire lunch costs $5.57
Hope it helps!
Answer:
1/7
Step-by-step explanation:
1/7
Answer:

Step-by-step explanation:
<u>Step 1: Combine like terms</u>
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Answer: 