Andrew made 4 different kinds of cookies. he made 22 chocolate chip, 33 peanut butter, 15 chocolate, and 20 sugar. what percent of all the cookies did he make sugar?

22.22% or 22.2% (rounded to nearest tenth) or 22% (rounded nearest whole number)

Step-by-step explanation:

22+33+15+20=90

20/90 are sugar

simplify and you get 2/9

2/9 as percent is 22.22222...%

Round to get 22.22% or 22.2% or 22%

I really hope this helps!!

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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: