About $0.37 because you divide $4.49 by 12
Answer:
Part A: y=4.50x+6
Part B: $46.50=4.50(9)+6
Marc can buy up to 9 sandwiches ($40.5) plus chips ($6) without going over $50.
Answer:
$157.89
Step-by-step explanation:
you could say that 150 is 95% of what the original bill was
in equation form: 150 = .95x
150/.95 = 158.89
158.89 = x
Recall that
d/dx sech(x) = - sech(x) tanh(x)
d/dx tan⁻¹(x) = 1/(1 + x²)
Then by the chain rule,
dy/dx = - sech(x) tanh(x) / (1 + x²)
