I will give brainliest for first correct answer! Claire correctly solved the proportion x/4 = 36/6 for x by using cross products
to get the equation 16 x = 144 and then dividing both sides by 16 to get x = 9. She showed that she can use cross products to solve the proportion because she gets the same answer if the solves it as shown (look at image).
What property allowed her to go from x/4 = 36/6 to x/4 times 4 = 36/16 times 4?
A) addition property of equality
B) subtraction property of equality
C) multiplication property of equality
D) division property of equality
What property allowed her to go from x/4 = 36/6 to x/4 times 4 = 36/16 times 4?
A) addition property of equality
B) subtraction property of equality
C) multiplication property of equality
D) division property of equality
2 answers:
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Answer:
0.1527
Step-by-step explanation:
Given that a researcher wishes to conduct a study of the color preferences of new car buyers.
Suppose that 50% of this population prefers the color red
15 buyers are randomly selected
Let X be the no of buyers who prefer red.
X has exactly two outcomes red or non red.
Also each buyer is independent of the other
Hence X is binomial with p = 0.5 and n = 15
Required prob =The probability that exactly three-fifths of the buyers would prefer red
= P(X=9)
=
=
A) See the attached graph.
b) $298.92 per hour
b) $298.92 per hour