According to the graph, a student who studies 10 hours per week should earn a score of about how much?
1 answer:
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Answer:
The equation of the relation ⇒
y = 18
Step-by-step explanation:
∵ y ∝ x/z
∴ y = kx/z
∵ y = 18 , x = 15 and z = 5
∴ 18 = 15k/5 ⇒ 18 = 3k
∴ k = 18/3 = 6
∴ y = 6x/z
∵ x = 21 and z = 7
∴ y = (6 × 21)/7 = 18
<em>Train A = 214 </em>
<em> Train B = 86</em>
<em>Hope I helped!!! ^^</em>
<em>_______________</em>
<em>列車A = 214 </em>
<em> 列車B = 86 </em>
<em>私が助けてくれたらいいのに！^ ^</em>
