What is the answer to 3.9r=17.55 ?

The answer to 3.9r=17.55 is r= 9/2

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3.9r=17.55

3.9 r = 17.55

r = \frac{9}{2}

Decimal Notation

r = 4.5

Solution steps

3.9 r = 17.55

Multiply both sides by

100

390 r = 1755

Divide both sides by

390

r = \frac{9}{2}

(x + 2) (x + 2) = (x + 4)^{2}

x, 12 (x - 6) = 4 (y + 3)

B, v = \frac{1}{3} B h

y = \frac{3}{2} (- 2)^{2} + 3.5

3.1 = \frac{x}{6}