After spending $43 on groceries and $19 on book, Mrs. Groom had $16 left. How much money did Mrs. Groom have to begin with?
2 answers:
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Answer:
Step-by-step explanation:
Before adding we require the fractions to have a common denominator
The lowest common denominator of 2, 5 and 3 is 30, thus
+
+
= +
+
Add the numerators leaving the denominator
= =
Put the coordinates of the points (1, 21) and (2, 6) to the equation of the function:
Substitute (*) to (**):
Put the value of a to (*):
Answer: