A fundraising dinner was held on two consecutive nights. On the first night, 100 adult tickets and 175 children's tickets were sold for a total of
$937.50. On the second night, 200 adult tickets and 316 children's tickets
were sold for a total of $1790. What was the price for a child's ticket?

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 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: