2x+6y+(9x-6y)=20+24
11x=44
X=4
Y=2
I hope this helped!
The books are $5, and the magazines are $10. I’m not sure which way you want it explained but since magazines are twice the price of books, you can solve the equation 3b + 2b = 25. This gives you b=5 which you just multiply by 2 giving you the price of a magazine.
I think its 222064 i'm pretty sure it's correct
Answer
3.027 × 10^7
I'm not the best at explaining but here is my attempt
You start with 30270000 you write the first number which is 3 then put a decimal and then put the rest of the numbers until the rest of the numbers are zeros..
3.027
Then put a × 10^
3.027 × 10^
And then the original number's digit count minus 1 is the number so 0270000 is 7 digits so the answer is
3.027 × 10^7
Sorry i'm horrible at explaining
To subtract 98.86 from 85.15, let's line them up by decimal.
98.66
-85.15
______
13.51 is the answer.
Hope this helps!
May
