Answer:
Psychology textbooks = 98 and physics textbooks = 294
Step-by-step explanation:
Let there are x psychology textbooks sold.
No of physics textbooks sold = 3x
ATQ,
A textbook store sold a combined total of 392 physics and psychology textbooks in a week.
x + 3x = 392
4x = 392
x = 98
It means there are 98 psychology textbooks sold and 3x = 3(98) = 294 physics textbooks sold.
Answer:
Step-by-step explanation:
When the interest compounds continuously, our formula is
If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000. That's 20000. Therefore, our equation is
Divide both sides by 10000 to get
Take the natural log of both sides to "undo" that e:
Again, since ln and e undo each other what we have now is
ln(2) = .11t and
so
t = 6.3 years
Answer:
A=39.06 Sq Ft
Step-by-step explanation:
We are given with a square which has a side of 6.25 feet. We are asked to determine the area in square feet and Round to the correct significant digits.
Area of square is given as
A= side x side
Side = 6.25 ft
A=6.25 x 6.25
A= 39.0625
Rounding it to the nearest hundredth place
A=39.06 sq ft
Answer:
3+5=8
5+3=8
8-3=5
8-5=3
Step-by-step explanation:
Ummmm could u ask a question because this makes no sense are you adding subtracting what?
