1.4 – Rewrite Formulas and Equations

1.4 – Rewrite Formulas and Equations

Example 1:

Solve the formula C = 2pir for r.

Then find the radius of a circle with a circumference of 44 inches.

1.4 – Rewrite Formulas and Equations

Example 1b:

Solve the formula d= rt for t.

1.4 – Rewrite Formulas and Equations

Example 2:

Solve the formula P = 2l + 2w for w.

1.4 – Rewrite Formulas and Equations

Example 2b:

Solve the formula A = ½h(b1 + b2) for b2.

1.4 – Rewrite Formulas and Equations

Example 3:

Solve the formula 9x – 4y = 7 for y.

1.4 – Rewrite Formulas and Equations

Example 4:

Solve the formula 3 = 2xy -x for y.

1.4 – Rewrite Formulas and Equations

Example 5:

Solve the formula 2y + xy = 6 for y.

1.4 – Rewrite Formulas and Equations

Example 6:

Solve the formula 2xy – 5y = 8 for y.