Question

SITUACION PROBLEMÁTICA 2

Answer 1

Answer: We need to support her work for at least 15 days.

Step-by-step explanation:

Juana's mother receives a daily payment of 30 soles .

She has already 120 soles.

Let x = Number of days to save at least 550 soles.

Then, Total she has after x days = 120+30x

According to the question, we have

$120+30x \geq 550\\\\\Rightarrow\ 30x\geq550-120\\\\\Rightarrow\ 30x\geq430\\\\\Rightarrow\ x\geq\dfrac{430}{30}\\\\\Rightarrow\ x\geq14.33$

i.e. minimum value for x=15

Hence, we need to support her work for at least 15 days.