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kykrilka [37]
3 years ago
5

A plus 5 equals negative 5a plus 5

Mathematics
2 answers:
den301095 [7]3 years ago
8 0

Answer:

0

Step-by-step explanation:

jenyasd209 [6]3 years ago
4 0
A+5=5a+5   Subtract a from each side
5=5a+5       Subtract 5 from each side
0=5a           Divide each side by the number before the variable to get it alone.
--- ---
5   5
a=0
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Sammy Sales had the following receipts for his tree trimming business for the first six months of the year. What is the average
fredd [130]

average =  \frac{sum \:  \: of \:  \:all \:  \:  obeservations}{no. \:  \: of \: observaions}

=  \frac{1205 + 1450 + 1530 + 1655 + 1610 + 1710}{6}

=  \frac{9160}{6}

=  1526.66

___________________________________________

1526.66 is the average of his sales for this period.

6 0
3 years ago
Help please thank you
valentinak56 [21]

Answer:

Step-by-step explanation: letter B is the right answer

5 0
3 years ago
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Which equation can be used to find the length of ? (10)sin(40o) = AC (10)cos(40o) = AC = AC = AC
katovenus [111]
The complete question in the attached figure

we know that

sin40° = opposite side / hypotenuse
opposite side =AC
hypotenuse = AB-------> 10 in
so
sin 40=AC/AB---------> AC=AB*sin 40-------> AC=10*sin 40

the answer is
AC=10*sin 40

5 0
3 years ago
Read 2 more answers
The sum of two numbers is 60. One number is 4 times as large as the other. What are the numbers? Larger number: Smaller number:
Makovka662 [10]

Answer:larger=48, smaller=12

Source:trust me bro

5 0
2 years ago
The numbers 1,6,8,13,15,20 can be placed in the circle below, each exactly once, so that the sum of each pair of numbers adjacen
kompoz [17]

Answer:

\fbox{\begin{minipage}{4em}36 ways\end{minipage}}

Step-by-step explanation:

<em>Step 1: Re-state the problem in an easier way to set up a permutation problem</em>

"The numbers 1,6,8,13,15,20 can be placed in the circle below, each exactly once, so that the sum of each pair of numbers adjacent in the circle is a multiple of seven"

The series above can be represented again, in form of:

7a + 1, 7b - 1, 7c + 1, 7d - 1, 7e + 1, 7f - 1

with a, b, c, d, e, f are non-negative integers.

=> 3 numbers are multiply of 7 plus 1

=> 3 numbers are multiple of 7 minus 1

<em>Step 2: Perform the counting:</em>

For the 1st number, there are 6 ways to select

To satisfy that each pair of numbers creates a multiple of 7, then:

For the 2nd number, there are 3 ways left to select

For the 3rd number, there are 2 ways left to select

For the 4rd number, there are 2 ways left to select

For the 5th number, there are 1 way left to select

For the 6th number, there are 1 way left to select

=> In total, the number of possible ways to select:

N = 6 x 3 x 2 x 2 x 1 x 1 = 72

However, these numbers are located around a circle, each option is counted twice.

=> The final number of possible ways:

N = 72/2 = 36

Hope this helps!

:)

3 0
3 years ago
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