8a+4s=840
a=s+30
8(s+30)+4s=840
12s+240=840
12s=600
s=50
A=s+30
a=50+30
a=80
The drama play sold 80 adult tickets
Answer:
<h2><em>
If digits can be repeated: 36</em></h2><h2><em>
If the digit can not be repeated: 30</em></h2>
Step-by-step explanation:
<em>If digits can be repeated:</em>
On the first and second place we have 6 digits to choose from.
Therefore we have 6 · 6 = 36 two-digit numbers.
<em>If the digit can not be repeated:</em>
On the first place we have 6 digits to choose from and on the second place we have 5 digits to choose from.
Therefore we have 6 · 5 = 30 two-digit numbers.
The whole parallelogram is 360. The two obtuse angles are each 71+45=116, which adds up to 232.
The two acute angles together add up to 360 (the whole parallelogram) minus 232 (the two obtuse angles), which is 128. The two acute angles are equal in a parallelogram, so you can divide 128 by 2 to get one of the angles, which is 64.
This means that angle BAD is 64. BAD is just the sum of BAC and CAD, so you can now figure out BAC:
BAD=BAC+CAD
64=BAC+27 (the 27 is given)
BAC=64-27
BAC=37
4^3
Write 4 (3 times) because of the exponent.
4*4*4
= 16*4
= 64
Answer: 64
I would say 168 is the answer.