Let be "f" the amount of money (in dollars) one of the families made at the garage sale and "s" the amount of money (in dollars) the second family made at the garage sale.

Set up a system of equations:

$\left \{ {{f+s=1,640} \atop {f=2s+182}} \right.$

You need to use the Substitution Method to solve this system of equations:

1. Substitute the second equation into the first equation.

2. Solve for "s".

Then:

$2s+182+s=1,640\\\\3s=1,458\\\\s=\frac{1,458}{3}\\\\s=486$

3. Substitute the value of "s" into the second equation and then evaluate in order to find the value of "f". This is:

$f=2(486)+182\\\\f=1,154$

7 0

4 years ago

What is 23x(44)-7 ??

ivanzaharov [21]

1012x-7

multiplicas primero los paréntesis, en este caso seria 23(44), nos da 1012 y como 23 tenia "x" la agregamos 1012x y bajamos el -7 y nos da 1012x-7

5 0

3 years ago

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