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sleet_krkn [62]
4 years ago
13

Make x the subject of the formula

Mathematics
2 answers:
Xelga [282]4 years ago
7 0

Answer:

x=p(m-n)

Step-by-step explanation:

m=n+\frac{x}{p}

Put n to the other side by subtraction.

m(-n)=n(-n)+\frac{x}{p}\\m-n=+\frac{x}{p}\\

Use multiplication with 'p' to isolate x.

(p)(m-n)=\frac{x}{p}(p)\\ p(m-n)=x

x is now isolated.

x=p(m-n)

AysviL [449]4 years ago
6 0

m = n +  \frac{x}{p}  \\ pm = pn + x \\ x = pm - pn \\ or \\ x = p(m - n)

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Oxana [17]

Answer:

The speed of the boat in still water is 13 miles/hour.

The speed of the current is 6 miles/hour.

Step-by-step explanation:

Let the speed of the boat in still water be x

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When Irena's travelling downstream, the speed of the boat is:

Speed=\frac{76 miles}{4 hours}=19 miles/hour

Traveling down stream the speed of the boat will be :

x+y=19..(1)

When Irena's travelling upstream, the speed of the boat is:

Time taken by boat = 5 hours and 30 min = 5.5 hours (1 hour = 60 min)

Speed=\frac{38.5 miles}{5.5 hours hours}=7 miles/hour

Traveling down stream the peed of the boat will be :

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On Solving both equation (1)and (2).

x+y=19

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4 0
4 years ago
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sineoko [7]
Km, kilometer
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Answer:

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