Anonymous
Anonymous asked in Science & MathematicsMathematics · 8 months ago

# How do you solve these equations?

S1= \$81,000 + [0.2 × (\$16,000 +0.7 × S1)]

solve for S1

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• Anonymous
6 months ago

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• 8 months ago

S1 = \$81,000 + [0.2 × (\$16,000 + 0.7 × S1)]

S1 = \$81,000 + [(\$3,200 + 1.4 S1)]

1.4 S1 - S1 =  \$84,200

S1

• 8 months ago

S1= \$81,000 + [0.2 × (\$16,000 +0.7 × S1)]

S1 = 81,000 + 0.2(16,000 + 0.7S1)

S1 = 81,000 + 3200 + 0.14S1

S1 = 84,200 + 0.14S1

S1 - 0.14S1= 84,200

0.86S1 = 84,200

S1 = 97906.97 or \$ 97907 answer//

• 8 months ago

S1= \$81,000 + [0.2 × (\$16,000 +0.7 × S1)]

S1= \$81,000 + [0.2(\$16,000 + 0.7S1)]

S1= \$81,000 + [\$3200 + 0.14S1]

S1= \$81,000 + \$3200 + 0.14S1

S1 – 0.14S1 = \$84200

0.86S1 = \$84200

S1 = \$84200 / 0.86

S1 = \$97906.98

check

\$97906.98 = \$81,000 + [0.2 × (\$16,000 + 0.7 × \$97906.98)]

\$97906.98 = \$81,000 + [0.2 × (\$16,000 + \$68534.88)]

\$97906.98 = \$81,000 + [0.2 × (\$84534.88)]

\$97906.98 = \$81,000 + [\$16906.98]

\$97906.98 = \$97906.98

ok