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tatuchka [14]
3 years ago
7

Sophie practices the piano 105 minutes in 1 week. If t represents the total time she practices for any number of days, d, write

a proportional equation for t in terms of d that matches the context.
Mathematics
1 answer:
Alex Ar [27]3 years ago
3 0

Answer:

<h3>t = 15d</h3>

Step-by-step explanation:

You must first know that 1 week = 7days

If Sophie practices the piano 105 minutes in 1 week, this can be expressed as;

105 minutes = 7days

to calculate the total time t that she practices for any number of days, d, we will say;

t minutes = d days.

Solving both expression;

105 minutes = 7days

t minutes = d days.

Cross multiply;

7 * t = 105 * d

7t = 105d

Divide both sides by 7;

7t/7 = 105d/7

t = 15d

Hence a proportional equation for t in terms of d that matches the context is expressed as t = 15d

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