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pav-90 [236]
3 years ago
13

Bill's boss paid $20.05 for doughnuts for the office staff. The total included 1.30 cents for tax and $1.25 per doughnut. How ma

ny doughnuts did Bill's boss buy?
Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

Answer:

15 Doughnuts

Step-by-step explanation:

First, subtract 1.30 from 20.05

You get: 18.75

Now divide 18.75 by 1.25 to find the number of doughnuts he bought.

Therefore, he bought 15 doughnuts

Naily [24]3 years ago
7 0
ANSWER= 15 doughnuts!

explanation:

$20.05(total)-$1.30(tax)=$18.75
$18.75\$1.25(price per doughnut)= 15 doughnuts
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Evaluate the summation of negative 2 n minus 3, from n equals 2 to 10..
Alisiya [41]
\bf \sum\limits_{n=2}^{10}~-2n-3

so, let's first change the bounds from 1 to 9, so we'll be dropping the indices by 1, in order to do the variable "n".

however, let's use a variable hmmm say "k", where "k" is the value of "n" beginning at 1, thus k = n - 1.

however, if k = n - 1, then k + 1 = n.  So let's use those fellows then,

\bf \sum\limits_{n=2}^{10}~-2n-3\qquad 
\begin{cases}
k=n-1\\
k+1=n
\end{cases}\implies \sum\limits_{k=1}^{9}~-2\stackrel{n}{(k+1)}-3
\\\\\\
\sum\limits_{k=1}^{9}~-2k-2-3\implies \sum\limits_{k=1}^{9}~-2k-5\implies \sum\limits_{k=1}^{9}~-2k-\sum\limits_{k=1}^{9}~5
\\\\\\
-2\sum\limits_{k=1}^{9}~k-\sum\limits_{k=1}^{9}~5\implies -2\left( \cfrac{9(9+1)}{2} \right)\qquad -\qquad (9\cdot 5)
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-2(45)-45\implies -90-45\implies -135
5 0
3 years ago
What is the length of a diagonal cube with a side length of 10cm?
Blizzard [7]

Answer:

Step-by-step explanation:

diagonal=\sqrt{10^2+10^2}

diagonal=\sqrt{200}

diagonal=14.1421356

5 0
3 years ago
Which ordered pair is a solution of the equation -3x - y = 6
e-lub [12.9K]
Hello there!


The correct answer is option B (-3,3)

-3x - y = 6

-3(-3) - 3 = 6

9 - 3 = 6

6 = 6

Thus, the correct answer is option B

Good luck with your studied!


8 0
3 years ago
When testing a claim that the mean head circumference for newborn American infants is greater than 35.8 centimeters a random sam
Mila [183]

Answer:

hi

Step-by-step explanation: first you type h then you type i then it makes hi

8 0
3 years ago
if f(x)=2(x)^2+5sqrt(x+2), complete the follwoing statement ( round your answer to the nearest hundreth) : f(0)=_____
Maslowich

Answer:

f(0)=7.07

Step-by-step explanation:

We have the function f(x)=2(x)^2+5\sqrt{(x+2)}

In this case we want to find the value of f0)

To find f(0) you must replace the x in the function with the number 0 and solve as shown below

f(0)=2(0)^2+5\sqrt{(0+2)}

f(0)=0+5\sqrt{(0+2)}

f(0)=5\sqrt{(2)}

Therefore

f(0)=7.07

5 0
4 years ago
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