Martha has 124 bills consisting of 5-dollar bills and 10-dollar bills. If Martha has $840, how many of each kind of bill does sh
2 answers:
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Answer:
b = 3, which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0.
Step-by-step explanation:
The minus common multiply must be (b-3)*(b+3) = b² - 9
7b - 21 + 5b + 15 = 10b
2b = 6
b = 3
Which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0. So this solution is invalid.
Answer:
B. √50
Step-by-step explanation:
is 49 so √49 is 7
So,
since the <u>closest number to 49 is 50</u>, that is the answer.