The scatter plot shows the number of animal cells clara examined in a laboratory in different months:
plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180
what is the approximate predicted number of animal cells clara examined in the 9th month?

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

answer: for each 3 girls there is 2 boys . 3: 2

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