Population was 126,573,481
Answer:
James = 1 year
Austin = 5 years
Step-by-step explanation:
Let James age = x
Let Austin's age = y
James is four years younger than Austin.
x = y - 4
If three times James age is increased by the square of Austin's age, the result is 28.
3(x - 4) + y² = 28
Hence,
Note: x = y - 4
Hence,
3y - 12 + y² = 28
3y + y² - 12 - 28 = 0
y² + 3y - 40 = 0
y² + 8y - 5y - 40 = 0
y(y + 8) - 5(y + 8 ) = 0
(y + 8)(y - 5)
y = -8
y = 5 years
x = y - 4
x = 5 - 4
x = 1 years.
Answer:
See explanation.
Step-by-step explanation:
(i) 5^3 = 125
log 5^3 = log 125
Using the rule log a^n = n log a
3 log 5 = log 125.
(ii) 3^-2 = 1/9
-2 log 3 = log 1/9
(iii) 10^-3 = 0.001
-3 log 10 = log 0.001
(iv) 81^3/4 = 27
3/4 log 81 = log 27.
You add 70 + 50 then you multiply it by 7.5 and you get, 900 gallons.
Answer:
That should be it if I'm not mistaken. The first one is y= 4+x, and the second one is y= 2x
Step-by-step explanation:
Can I get Brainliest if I'm right?
