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Make your own real-life problem involving linear equations. Show your solution.​

Sagot :

Jasleah051205idn

Answer:

(1) Elise earns $10 per hour. How much does he earn for working up to 2 hours?

(a) Write the linear equation.

(b) Draw a table and a graph showing his wages.

Answer:

(a) Let x = the number of hours worked and y = wages

The equation is y = 10x

(b)

Number of hours worked, x 0 1 2

Pay ($), y 0 10 20

(2)Medicine doses are calculated on people's masses. A small child will receive less than a heavier adult.

For a particular medicine the dosage for a 10kg child is 50 millilitres.

(a) Write the equation.

(b) Draw a table and a graph for the dosages for people up to 30kg.

Answer:

(a) Let x = the patient's mass and y = medicine dose

The equation is y = 5x

(b)

Mass (kg), x 10 20 30

Dose (millilitres), y 50 100 150

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