4 years ago

Carlos is half as old as Andre Andre is 15 years older than Carlos how old is Andre

Mathematics

2 answers:

Leokris [45]4 years ago

7 0

Answer:

30 years old

Step-by-step explanation:

Let the two ages be A and C.

Then C = (1/2)A, and A = C + 15.

Substitute C + 15 for A in C = (1/2)A:

C = (1/2)(C + 15), or 2C = C + 15.

Then C = 15, and A = C + 15 becomes A = 15 + 15, or A = 30.

kvasek [131]4 years ago

4 0

Answer:30

Step-by-step explanation:

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Helen plays basketball. For free throws, she makes the shot 78% of the time. Helen must now attempt two free throws. C = the eve

riadik2000 [5.3K]

Answer:

0.6708 or 67.08%

Step-by-step explanation:

Helen can only make both free throws if she makes the first. The probability that she makes the first free throw is P(C) = 0.78, now given that she has already made the first one, the probability that she makes the second is P(D|C) = 0.86. Therefore, the probability of Helen making both free throws is:

$P(C+D) = P(C) *P(D|C) = 0.78*0.86\\P(C+D) = 0.6708$