Answer:
a = 7
Step-by-step explanation:
I think, what you need to do, is first understand how to find the mean of anything: It's quite simple, actually, just add up all the numbers, then divide that number by the number of numbers. So, let's put it in perspective:
10, 3, 4, a, 6, 9, 10
7 is the mean. 7 is the number of numbers.
If, to find the mean is: 10 + 3 + 4 + a + 6 + 9 + 10= 7a ÷ 7, then: 10 +3 + 4+ 6 + 9 +10= 42
42 plus what divided by 7 is the question now.
42 + a ÷ 7= 7
So, 7 times 7, that's 49 minus 42 and you've got your answer: 7
Pablo Banko a note to the team Tennessee has the 1.5 million solar 2,000,000.3 468o
Answer:
Step-by-step explanation:
X=hamburgers
y=hotdogs
3y+2x=8.00
AND
2y+3x=8.25
Now we've got a system of equations!
Choose a method to solve it, and I think you'll be good from there.
If you need more guidance to the answer, tell me in the comments.
BEST OF LUCK:)
Answer:
8^3.
Step-by-step explanation:
= [ (6^3)^6*1/2] / [9^9]^1/2
= 6^9 / 9^9/2
= 6^9 / (3^2)^9/2
= 6^9 /3^9
= 512
= 8^3.
