3x+7+5x-4=67
8x+3=67
8x=64
x=8, now sub 8 for x
3(8)+7
24+7=31
Answer:EF=31
Answer:
wdym
Step-by-step explanation:
Answer:
it is B
Step-by-step explanation:
The simplest I can put it
10^1 = 10
10^2 = 100
10^3 = 1000
(essentially the number of zeroes)
5*10^2 = 5*100 = 500 (adding 2 zeroes, or moving the decimal over 2 places
Same works for numbers smaller than zero
5*10^-2 = 5*.01 = .05 (moving the decimal to the right 2 places
For both problems, they want you to check their answers. For #1, is the opposite of -12 + 4 eight? For #2, can you split an 8 oz bag into 13 to have 2/3 oz in each bag? If you want the answers I’d be happy to comment. :)
