The probabilities of knocking down zero, one, and two pins are 
and 
, respectively. The total probability of knocking down at most two is thus 
, or 
.
Shiloh is 7 years older than Courtney. Shiloh's age is 13 years less than two times Courtney's age. The system below models the
2 answers:
Answer:
Option B is correct
Solve c + 7 = 2c – 13 to find the value of c.
Step-by-step explanation:
As per the statement:
Shiloh is 7 years older than Courtney. Shiloh's age is 13 years less than two times Courtney's age.
The system below models the relationship between Shiloh's age (s) and Courtney's age (c):
....[1]
....[2]
Equate the equation [1] and [2], to solve for c we have;
Therefore, the following methods is correct to find Shiloh's and Courtney's age is:
Solve c + 7 = 2c – 13 to find the value of c.
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