hailee232
31.03.2021 •
Mathematics
Tell whether the statement is true or false if false provide a counterexample.
Part A
A set of whole numbers contains a set of rational numbers
Part B
Every terminating decimal is a rational number.
Part C
Every square root is a rational number.
Part D
The integers are closed under addition.
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Ответ:
n=7+9t
Step-by-step explanation:
Use variable expressions to represent the number of each type of coin.
Multiply the number times the value to get the total value of each type of coin. In this problem you cannot count each type of coin—that is what you are looking for—but you have a clue. There are nine more nickels than dimes. The number of nickels is nine more than the number of dimes.
Let d = number of dimes.
d + 9 = number of nickels
Fill in the “number” column to help get .