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faltersainse [42]

3 years ago

11

At the beginning of the month, Sheryl had a balance of $120 in her checking account. She then made a purchase for $80, using her

checking account. How much money will Sheryl need to deposit if she wants her account balance to be the same as it was at the beginning of the month?

1 answer:

Rama09 [41]3 years ago

3 0

$80

add what you took out

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Step-by-step explanation:

Let small candies $=x$

Extra large candies $=y$

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$x+y\geq20$

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$4x+12y\leq180$

Solve for

$x+y=20.......(1)\\4x+12y=180.....(2)\\eqn(2)-eqn(1)\times4\\8y=100\\y=\frac{100}{8} \\y=\frac{25}{8} \\from\ eqn(1)\\x+\frac{25}{2}=20\\ x=20-\frac{25}{2} \\x=\frac{15}{2}$

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She has $\$4$ more so she can buy $1$ more small candy.

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