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klemol [59]
3 years ago
15

A bookkeeper needs to post the cost of the desk and the chair into his records. The cost of the desk is fives times the cost if

the chair. The total cost of the desk and the chair is $720, what is the cost of the chair?
Mathematics
1 answer:
Novay_Z [31]3 years ago
8 0

Answer:

120

Step-by-step explanation:

720÷6

why?

becoz 6= 1+5

1 is the cosy of the chair

5 is the cost of the desk

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Answer:

You can use Pythagoras theorem to calculate x:

12² + 14² = x²

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A principal of $950 is invested in an account at 7 percent simple interest per year. What is the amount of the principal after 5
Nataly_w [17]
\bf ~~~~~~ \textit{Simple Interest Earned Amount}
\\\\
A=P(1+rt)\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
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r=rate\to 7\%\to \frac{7}{100}\to &0.07\\
t=years\to &5
\end{cases}
\\\\\\
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3 0
2 years ago
HALPPPPP!!
Semmy [17]

Answer:

20,2,0,-4,-.0625

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3 0
2 years ago
Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. She randomly picks three coins. Each time she picks a coin, she
Mashutka [201]

Answer:

(1) .20 (2) .40 (3) .12 (4) Less than

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You have to look at the table.  There are 5 columns with 10 rows.  5x10=50

Then simply count the boxes that have the correct number of currency for instance, if they are asking for EXACTLY 1 dime then you rule out the ones that have 2 or 3 dimes and only the count the ones that have a single dime.   So you count PDN but you would not count PDD.  There are 20 boxes that have a single dime in them.  20 out of the 50 boxes. 20/50=.40 (answer 2)

The estimated probability that exactly two of the three coins Avery randomly picked are nickels is . 20

The estimated probability that exactly one of the three coins Avery randomly picked is a dime is . 40

The estimated probability that all three coins Avery randomly picked are pennies is . 12

The answer to #1 is .20 or 20% and the answer to #2 is .40 or 40%.  20% is less than 40% so...

The estimated probability that exactly two of the three coins Avery randomly picked are nickels is  LESS THAN the estimated probability that exactly one of the three coins Avery randomly picked is a dime.

4 0
3 years ago
Is this a function or not a function
notka56 [123]

this is a function becuase it passes the verticle line test (no 2 points are above each other).

8 0
2 years ago
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