The table below shows the total number of hours, Jessica, Emily, and Trina, each studied after given number of weeks. Part A one
of the relationships between weeks and total hours studied is proportional. Whose number of total hours studied is proportional to the number of weeks studied ? For the proportional relationship, write an equation to represent y, the total number of hours studied, in terms of x, the number of weeks. Explain how u determined your equation. Pls help
2 answers:
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Answer:
Sophie will get <u>$56</u> in exchange.
Step-by-step explanation:
Given:
TravelEz sells dollars at a rate of ($1.40)/(1 euro).
And dollars they buy at a rate of ($1.80)/(1 euro).
Sophie exchanged $540 to get 300 euros, at the beginning of trip.
And, she is left with 40 euros at the end of trip.
So exchanges the euros back to dollars.
Now, to find the dollars Sophie will get in exchange.
Let the dollars Sophie will get in exchange be
The rate at which TravelEz sells dollars =
Number of euros Sophie is left with =
Now, to get the dollars she will get we set proportion:
<em>As, </em><em> is equivalent </em>
<em>.</em>
<em>So, </em><em> is equivalent to </em>
<em>.</em>
Thus,
By cross multiplying we get:
Therefore, Sophie will get $56 in exchange.