(2x+40)+(3x+20)=180
because they are supplementary angles
therefore:
2x+3x+40+20=180
5x+60=180
5x=120
x=24
Let A = {Dirk, Johan, Frans, Sarie}, B = {Frans, Sarie, Tina, Klaas, Henrika}, C = {Hans, Frans}. Find the number indicated. n(A
olchik [2.2K]
Answer:

Step-by-step explanation:
Given,
A = { Dirk , Johan , Frans , Sarie }
B = { Frans , Sarie , Tina , Klass , Henrika }
To find : n ( A ) + n ( A )
Now, count the number of member of a set A
n ( A ) = 4
Also, Count the number of members of a set B
n ( B ) = 5
<u>Finding </u><u>n</u><u>(</u><u> </u><u>A</u><u> </u><u>)</u><u> </u><u>+</u><u> </u><u>n</u><u> </u><u>(</u><u> </u><u>B</u><u> </u><u>)</u>
= 4 + 5
= 9
Hope I helped!
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For 12 shirts, the cost would be same for both companies.
Step-by-step explanation:
Given,
Cost per shirt of one company = $9.65
Setup fee = $43
Let,
x be the number of shirts.
A(x) = 9.65x+43
Cost per shirt of another company = $8.40
Setup fee = $58
B(x) = 8.40x+58
For the costs to be same;
A(x) = B(x)

Dividing both sides by 1.25

For 12 shirts, the cost would be same for both companies.
Keywords: function, division
Learn more about functions at:
#LearnwithBrainly
September : 12
october: 18
november : 16
together in sept. and oct. = 12+18 = 30
number of books he read more in sept. and oct. then just nov.= 30 - 16 = 14
in short, the answer is 14 books.
hope it helps you!