Answer:
600
Step-by-step explanation:
concert=x
orchestra= 800-x
5x+10(800-x)=7000
5x+8000-10x=7000
-5x=-1000
x=200
800-x=600
Check
200*5=1000
600*10=6000
Answer:
Step-by-step explanation:
1+sin²(a) +cos²(a) =2
note : for all a in R : sin²(a) +cos²(a) =1
so : 1+sin²(a) +cos²(a) = 1+1 =2
Answer: I think its C or D
Answer:
$6488.19
Step-by-step explanation:
To solve this problem we use the compounded interest formula:
a = $2600(1+(0.0675/1))¹*¹⁴
a = $6488.19