A pair of shoes cost $220. You have a 20% coupon and the tax is 8.25%. What is the total cost of the shoes?
1 answer:
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- Initial velocity=u=20km/h
- Final velocity=v=70km/h
- Time=10s=t
Convert speeds to m/s
Jenna has $43 and Heidi has $17.
Step-by-step explanation:
Total amount = $60
Let,
Amount of Jenna = x
Amount of Heidi = y
According to given statement;
x+y=60 Eqn 1
x=2y+9 Eqn 2
Putting value of Eqn 2 in Eqn 1;
Dividing both sides by 3,
Putting y=17 in Eqn 2
Jenna has $43 and Heidi has $17.
Keywords: linear equations, substitution method
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