А с с ?
А А А с
С А В В
73 80 82 100
16
15
17
Equations and Hints:
Each letter is a whole number.
Fill in the equations using the chart:
C+A+ B - B = 17 Сх + A = 80
+ + - - -= 15 -х — + — = 82
+ = 73
Additional hints:
А < 16 C = A +1

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

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:

i believe a. 12x≥120 is the answer