A wooden beam 24 feet long leans against a wall and makes an angle of 71° with the ground. How high up the wall does the beam re
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Make a system of equations.
Plug in 2d for 'q' in the first equation:
Multiply:
Combine like terms:
Divide 0.60 to both sides:
Now plug this into any of the two equations to find 'q':
So she has 10 dimes and 20 quarters.
Plug in 2d for 'q' in the first equation:
Multiply:
Combine like terms:
Divide 0.60 to both sides:
Now plug this into any of the two equations to find 'q':
So she has 10 dimes and 20 quarters.