Answer:
8,000
Step-by-step explanation:
70 + x + 8 + 800,000,000 = 800,008,078 Add on the left side
800,000,078 + x = 800,008,078
-800,000,078 - 800,000,078 Subtract 800,000,078 from both sides
x = 8,000
8000
It's the only number missing from the answer to arrive at the answer itself :)
Q1. x = 10
Q2. x = 7
The steps are :
Q1.
Q2.
2.1 * 10 ^3
5.67 * 10 ^7 ÷2.7 x 10^4
Divide the numbers
5.67 / 2.7 =2.1
Divide the exponents
10^7 / 10 ^4
Remember when dividing power, we subtract the exponents
10 ^(7-4) = 10^3
Put this back together
Verify that this is in scientific notation
Since this is in scientific notation, we are done
250
(13 - 3)/(1 + 4) = 10/5= 2
y - 13 = 2(x - 1)
y - 13 = 2x - 2
y = 2x + 11
