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Hunter-Best [27]
3 years ago
10

If 10 minutes talk-time costs $2, how much will 7 minutes cost?

Mathematics
2 answers:
Sladkaya [172]3 years ago
5 0
The answer is A) $1.40
Jet001 [13]3 years ago
5 0

Answer:

A

Step-by-step explanation:

10=2

7=Xthen

10x=14,we divided both side by 10and we get

1.4$

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Esteban has a big jar of change in his room. He has 600 coins total, and 240 of them are pennies. What percentage of the coins a
Thepotemich [5.8K]
<h2>40 % of coins are pennies.</h2>

Step-by-step explanation:

Total number of coins = 600

Total number of pennies = 240

\texttt{Percentage of the coins are pennies=}\frac{\texttt{Total number of pennies}}{\texttt{Total number of coins}}\times 100\\\\\texttt{Percentage of the coins are pennies=}\frac{240}{600}\times 100\\\\\texttt{Percentage of the coins are pennies=}\frac{240}{6}\\\\\texttt{Percentage of the coins are pennies=}\frac{120}{3}\\\\\texttt{Percentage of the coins are pennies=}40\%

40 % of coins are pennies.

3 0
4 years ago
Read 2 more answers
Keisha just deposited a total of 900 into savings accounts at two different banks. the 550 she deposited at bank A will earn 2.2
mars1129 [50]

Answer:

F.

Step-by-step explanation:

Find how much interest she will earn from bank A:

100% = 550

1% = 550 ÷ 100 = 5.5

2.25% = 12.375

Find how much interest she will earn from bank B:

900 - 550 = 350

100% = 350

1% = 350 ÷ 100 = 3.5

3% = 3.5 x 3 = 10.5

Find out how much money she will earn from both banks of their interest:

10.5 + 12.375 = 22.875

Find out how much money she will earn from both banks of their interest in 2 years:

22.875 x 2 = 45.75

Find out how much she earns from both banks including interest:

900 + 45.75 = 945.75

(Final answer)

5 0
3 years ago
Discuss and explain why sampling permits us to make inferences about populations.
GREYUIT [131]

The end result of sampling is to get a representative sample, or a small collection of units or cases from a much larger collection or population. In theory, the researcher can study the smaller group and produce accurate generalizations about the larger group. Researchers focus on the specific techniques that will yield highly representative samples much so in similarities as a population. Quantitative researchers tend to use a type of sampling based on theories of probability from mathematics, called probability sampling.Sampling is the group of individuals who participate in your study. These are the individuals who will participate in a qualitative study. People who could have been participants in your study but did not actually participate are not considered part of your sample.

6 0
3 years ago
What are the solutions to the equation |x – 10| – 4 = 2x?
Yuliya22 [10]

|x – 10| – 4 = 2x

x - 10 - 4 = 2x

x - 14 = 2x

x - 2x = 14

-x = 14

x = -14

7 0
3 years ago
​ <br><br> E=6c 2−2c−1 <br> F=−4c 2 +7c+5<br> E+F=<br> ​
shepuryov [24]

Answer:

F=−4c 2 +7c+5

Step-by-step explanation:

5 0
3 years ago
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