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Jlenok [28]
3 years ago
10

At a concession​ stand, seven hot dog(s) and two hamburger(s) cost ​$15.25​; two hot dog(s) and seven hamburger(s) cost ​$14.00.

Find the cost of one hot dog and the cost of one hamburger.
Mathematics
2 answers:
Murrr4er [49]3 years ago
8 0

Answer:

Burgers: $1.50

Hotdogs: $1.75

Equation Check:

(1.75x7) + (1.50x2) =

15.25

(1.75x2) + (1.50x7) =

14

Elina [12.6K]3 years ago
7 0

Answer:

The answer to your question is burgers are $1.50 and the Hotdogs are $1.75

Step-by-step explanation:

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3 years ago
Consider a series circuit consisting of a resistor of R ohms, an inductor of L henries, and variable voltage source of V(t) volt
ser-zykov [4K]

Answer:

I(t)=\frac{1}{3}(1-e^{-30t})

Step-by-step explanation:

We are given that

\frac{dI}{dt}+\frac{R}{L}I=\frac{V(t)}{L}

R=150 ohm

L=5 H

V(t)=10 V

P=\frac{R}{L}=\frac{150}{5}=30

I.F=e^{\int Pdt}=e^{\int 30 dt}=e^{30 t}

I(t)\times I.F=\int e^{30 t}\times 10 dt+C

I(t)\times e^{30 t}=\frac{10}{30}e^{30 t}+C

I(t)=\frac{1}{3}+Ce^{-30 t}

I(0)=0

Substitute t=0

0=\frac{1}{3}+C

C=-\frac{1}{3}

Substitute the values

I(t)=\frac{1}{3}-\frac{1}{3}e^{-30 t}

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5 0
3 years ago
If f(x) = -(-2x - 5), what is f(-5)?
sammy [17]

Answer:

f(-5)=-5

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
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