Ms. Figgs asked 25 students in her 7th grade homeroom to select their favorite cookie. The results are recorded in the table bel
ow.
Based on the results, how many students will NOT select chocolate chip as there favorite cookie, if there are 250 students in the seventh grade? It would mean the world if someone could answer ASAP it’s my last question in my quiz for math.
Based on the results, how many students will NOT select chocolate chip as there favorite cookie, if there are 250 students in the seventh grade? It would mean the world if someone could answer ASAP it’s my last question in my quiz for math.
1 answer:
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Length: 2w + 59
width: w
diagonal: (2w + 59) + 2 = 2w + 61
Length² + width² = diagonal²
(2w + 59)² + (w)² = (2w + 61)²
(4w² + 118w + 3481) + w² = 4w² + 122w + 3721
5w² + 118w + 3481 = 4w² + 122w + 3721
w² + 118w + 3481 = 122w + 3721
w² - 4w + 3481 = 3721
w² - 4w - 240 = 0
a = 1, b = -4, c = -240
w =
=
=
=
=
=
since width cannot be negative, disregard 1 - 2√61
w = 1 + 2√61 ≈ 16.62
Length: 2w + 59 = 2(1 + 2√61) + 59 = 2 + 4√61 + 59 = 61 + 4√61 ≈ 92.24
Answer: width = 16.62 in, length = 92.24 in