A gardener in Jaipur plants saplings. He represents rose saplings by r and mango saplings by m. On Monday he plants 7r + 4m, and on Tuesday 5r + 2m. After combining like terms over both days, what is the coefficient of r?

Question

Accepted Answer

12. r-terms are like: 7r + 5r = 12r. (m-terms combine separately to 6m.) Coefficient of r is 12.

A gardener in Jaipur plants saplings.
He represents rose saplings by $r$ and mango saplings by $m$ .
On Monday he plants $7 r + 4 m$ , and on Tuesday $5 r + 2 m$ .
After combining like terms over both days, what is the coefficient of $r$ ?

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More Class 7 Like and Unlike Terms practice

A gardener in Jaipur plants saplings.He represents rose saplings by r and mango saplings by m.On Monday he plants 7r+4m, and on Tuesday 5r+2m.After combining like terms over both days, what is the coefficient of r?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 7 Like and Unlike Terms practice

A gardener in Jaipur plants saplings.
He represents rose saplings by $r$ and mango saplings by $m$ .
On Monday he plants $7 r + 4 m$ , and on Tuesday $5 r + 2 m$ .
After combining like terms over both days, what is the coefficient of $r$ ?