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IRISSAK [1]
3 years ago
7

can someone help me anyone please Giselle works as a carpenter and as a blacksmith.She earns \$20$20dollar sign, 20 per hour as

a carpenter and \$25$25dollar sign, 25 per hour as a blacksmith. Last week, Giselle worked both jobs for a total of 303030 hours, and earned a total of \$690$690dollar sign, 690.How long did Giselle work as a carpenter last week, and how long did she work as a blacksmith?Giselle worked as a carpenter for  hours and as a blacksmith for hours last week.
Mathematics
1 answer:
Artemon [7]3 years ago
6 0
Let she work for x hours as carpenter !
so earned money = 20x

and for blacksmith she must work for 30-x hours 


so earned money = (30-x) ×25

so putting in eqn;

20x+25(30-x) = 690 
so, x= 60/5 = 12 

so she works for carpenter for 12 hrs and 30-12= 18 hrs for blacksmith
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