SITUACION PROBLEMÁTICA 2 MIS AHORROS
La mamá de Juana recibe un pago diario de 30 soles por apoyar en la venta de artículos de primera necesidad; así que ya tiene ahorrado 120 soles. Si desea ahorrar por lo menos 550 soles, ¿Cuántos días como mínimo, a partir de hoy, debe apoyar en ese trabajo para lograr su objetivo?

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

i.e. minimum value for x=15

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

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step-by-step explanation:

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: