Aclass has 6 boys and 15 girls. what is the ratio of boys to girls.

It would be 2:5 boys to girls.

Step-by-step explanation:

The original ratio would be 6:15, but its not simplified both sides can divide by 3 so 6÷3=2 and 15÷3=5 so the simplified ratio is 2:5, boys to girls.

2:5

Step-by-step explanation:

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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: