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Marizza181 [45]
3 years ago
7

Dennis has 80 nickels and dimes that equal up to $6.60 how many of each coin did he have

Mathematics
1 answer:
Tasya [4]3 years ago
4 0

Answer:

im really confused soryy that i cant help

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4. Ideal amount of children
Vaselesa [24]

Answer:

3

Step-by-step explanation:

Formula:

\frac{sum of all numbers added together}{total amount of numbers}

\frac{21}{7} = 3

3 0
2 years ago
Karen is 6 years older than her sister Michelle, and Michelle is 2 years younger than their brother David. If the sum of their a
ale4655 [162]
K\ \rightarrow\ the\ Karen's\ age\\M\ \rightarrow\ the\ Michelles\ age \\D\ \rightarrow\ the\ David's\ age\\\\K=M+6\\M=D-2\ \ \ \Rightarrow\ \ \ D=M+2\\K+M+D=62\\\\(M+6)+M+(M+2)=62\\3M+8=62\\3M=54\ /:3\\M=18\ \ \ \Rightarrow\ \ \ K=18+6=24\ \ \ and\ \ \ D=18+2=20\\\\Ans.\ Michelle\ is\ 18,\ David\ is\ 20,\ Karen\ is\ 24.
6 0
3 years ago
Question 2(Multiple Choice Worth 5 points)
ElenaW [278]

Answer:

it C Step 2, the exponents in the denominator are added during multiplication

hope it helps!

8 0
3 years ago
Evaluate Functions<br> Given f(x) = 2x + 6 and g(x) = 5x - 1<br> Evaluate f(-2)
ZanzabumX [31]

Answer:

f(-2) = -4x + 6

Step-by-step explanation:

f(x) = 2x + 6

f(-2) = -2(2x) + 6

f(-2) = -4x + 6

4 0
2 years ago
Read 2 more answers
The sum of a number and 3 is 8
Doss [256]

Answer:

5

Step-by-step explanation:

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2 years ago
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