6 zeros
You pretty much just multiply the 4 and the 8 and proceed by adding the quantity of zeros. So the product would be 32,000,000.
Answer:
y = (-5/2)x + 27
Step-by-step explanation:
Use the point slope formula y = mx + b.
Replace m with -5/2, x with -8 and y with 7:
7 = (-5/2)(8) + b. Find the y-intercept, b:
7 = -20 = b, or b = 27
The equation of this line is y = (-5/2)x + 27.
x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80
This is how Corey should have solved
y = 1.505*x - 88.21
80 = 1.505*x - 88.21 <--- replace y with 80
1.505*x - 88.21 = 80
1.505*x = 80 + 88.21 <--- add 88.21 to both sides
1.505*x = 168.21
x = 168.21/1.505 <--- divide both sides by 1.505
x = 111.767
x = 111.8
If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval.
So there are 14 books in total you want to do some simple math...
You are given that 8 of the books are new so the rest should be used and you need to figure out the used books so you need to subtract 8 used books from the total amount of books (14)
14-8 =6
So you can safely assume 6 books are used
Now a ratio is one to one so used books to new books
Used books : new books
6 : 8
Now if your told yo simplify then it’s just like simplifying a fraction to get
3 : 4
And now for used books to all books
Used books : all books
6 : 14
Simplified
3 : 7
If you need any further help feel free to add me on snap- @freera9
For any math help
Answer:
If your money is earning a 5% interest rate annually, then it will take 14.4 years to completely double itself.
Step-by-step explanation:
An easy rule of thumb to remember is to take 72 and divide it by the intrest rate as if it was a whole number. For instance, if you were looking at an 8% interest rate, then it would take 9 years to double.
72/5 = 14.4
Hope this helps!
