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taurus [48]
3 years ago
13

monica has some cookies. she gave seven to her sister. then, she divided the remainder into two halfway, and she still had five

cookies left. writing equations using symbols
Mathematics
1 answer:
mestny [16]3 years ago
6 0

Answer:  \bold{\dfrac{x-7}{2}=5\qquad \rightarrow \qquad x = 17}

<u>Step-by-step explanation:</u>

Monica has some cookies: x

She gave seven to her sister: x - 7

Then she divided the remainder into 2: \dfrac{x-7}{2}

She still had five cookies left: \dfrac{x-7}{2}=5


To solve, multiply both sides by 2, then add 7 to both sides.

\dfrac{x-7}{2}(2)=5(2)\qquad \rightarrow \qquad x - 7 = 10

x - 7 = 10\qquad \rightarrow \qquad x = 17

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Daniela invested a total of $50,000, some in a certificate of deposit (CD) and the remainder in bonds. The amount invested in bo
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