Answer:
x=1 y=7
Step-by-step explanation:
−5x+2y=9
y=7x
Substitute the second equation into the first
-5x +2(7x) = 9
Distribute
-5x +14x = 9
Combine like terms
9x=9
Divide by 9
9x/9 =9/9
x= 1
Now find y
y = 7(1)
y = 7
47x-12
by step
36x -12 +11
25. 29 minutes and 53 seconds
26. 6 gallons
So scientific notation is
(number>1 and <10) times 10^xpower
so count how many decimal places the decimal needs to move to make 76994 >1 and <10
it needs to move 4 places so
7.6994 times 10^4
the answer is A
