Answer:
The required equation is .
Step-by-step explanation:
If a quadratic equation is , then the quadratic formula is
The given quadratic equation is
Here, a=1, b=-9 and c=-20.
Substitute a=1, b=-9 and c=-20 in the above quadratic formula.
Therefore the required equation is .
Let no. of pens be x.
Pens : x
Pencils: x+8
Total: 2x+8
Student takes 1 pen and 5 pencils.
Remainder: 2x+8 - 5 -1 = 2x+2
2x+2 = 26
2x= 24
x = 12 (original no. of pens)
x+ 8 = 20 (original no of pencils)
There are 12 pens at first and 20 pencils.
After 1 pen is taken, 11 pens are left.
After 5 pencils are taken, 20-5=15 pencils are left.
8 pounds * 16 ounces/pound * 1 steak/4 ounces = 32 steaks
8 * 16 * 1/4 = 32
8 pounds * $4.50/pound = $36.00
8 * 4.5 = 36
$ / steak:
$36.00 / 32 steaks = $1.125/steak
That's a really good deal ;)
Answer:
Max is currently 12 years old.
Step-by-step explanation:
Zeke's current age = 8 years
Lets take Max's current age as years.
Then Max's age 3 years ago =
Double Max's age 3 years ago =
Double Max's age 3 years ago + Zee's current age = 26
⇒ + =
=
= (Simplifying the brackets)
=
=
So Max's current age is 12 years.