Question

answer the question 17​

Answer 1

Step-by-step explanation:

I hope it will help you

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Answer 2

Heya^_^

S o l u t i o n:

G i v e n -

• 25% of 720 g is copper
• 30% of 720 g is tin
• Rest is aluminium

A n s w e r:

%age of aluminum= 100-(25+30)

=100-55

=45%

Mass of aluminum=45% of 720

=

$\frac{45}{100} \times 720 \\ = 0.45 \times 720 \\ = 324 \: g$

F i n a l A n s w e r= 324 g

HOPE IT HELPS✌