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The ratio of the number of cookies baked by Linus to Omar is 8 : 7. After Linus gave
away 36 cookies, Omar had twice as many cookies as Linus. How many cookies did
they bake altogether?
Answer:
120 cookies
Explanation:
Ratio of cookies baked :
Linus : Omar = 8 : 7
Let total = x
Linus = 8/(8+7) * x = 0.533333x
Omar = 0.4666666x
2(0.5333333x - 36) = 0.4666666x
1.0666666x - 72 = 0.4666666x
1.0666666x - 0.4666666x = 72
0.6x = 72
x = 72/0.6
x = 120
L / O = 8 / 7
L = (8/7)O
O 2
_______ = ____ cross-multiply
L - 36 1
2 ( L - 36) = O
2L - 72 = O divide through by 2
2 (8/7)O - 72 = 0
(16/7)O - (7/7)O = 72
(9/7)O = 72
O = (72)(7/9) = 56
L = (8/7) (56) = 64
56 + 64 = 120
development of hypothesis testing in the geography
Explanation:
Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding a population parameter. The methodology employed by the analyst depends on the nature of the data used and the reason for the analysis. Hypothesis testing is used to assess the plausibility of a hypothesis by using sample data
What is the volume of a cone 22yd by 22yds