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Leokris [45]
3 years ago
13

!!!! I need help with numbers 1 and 9 please !!!!!

Mathematics
1 answer:
Nataly_w [17]3 years ago
5 0

(1)

given \frac{j}{6} = \frac{9}{10} ( cross- multiply )

10j = 54 ( divide both sides by 10 )

j = \frac{54}{10} = \frac{27}{5} ← in simplest form

(9)

let h be the hours worked daily , then

3h = 20 \frac{2}{3} = \frac{62}{3} ( divide both sides by 3 )

h = \frac{62}{3} ÷ 3

  = \frac{62}{3} × \frac{1}{3} = \frac{62}{9} = 6 \frac{8}{9}

She worked  6 \frac{8}{9} hours each day


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