3x + 2y = 26
y = 5x
Slove the system

Answer = 2

Step-by-step explanation:

3x + 2(5x) = 26

3x + 10x = 26

13x = 26

26 ÷ 13 = 2

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:

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it