contestada

In Math camp 144 problems were solved in two days.
The number of problems solved on the second day is
80% of the amount of the problems solved during the
first day. How many problems were solved in the first
day?

Respuesta :

opudodennis

Answer:

80 questions.

Step-by-step explanation:

-Let X be the number of problems solved on day 1.

-Questions solved on day 2 are:

[tex]=80\%\times x\\\\=0.8x[/tex]

We know that the total number of questions solved is 144:

[tex]x+0.8x=144\\\\1.8x=144\\\\x=80[/tex]

Hence, the number of questions solved on the first day is 80

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