Answer:
36p+4
Step-by-step explanation:
1 1/4 + 1/2 + 3/4 =
5/4 + 1/2 + 3/4 =
5/4 + 2/4 + 3/4 =
10/4 = 2 1/2 (or 2.5) oz's <
It is given in the question that
Anna buys 12 pens and 20 pencils for a total cost of $16. One pen costs $0.40 more than a pencil.
Let the cost of pencil is $ x .
Therefore cost of pen is
![$(x+0.40)](https://tex.z-dn.net/?f=%24%28x%2B0.40%29)
According to the question
![12(x+0.40)+20x =16](https://tex.z-dn.net/?f=12%28x%2B0.40%29%2B20x%20%3D16)
Distributing 12 and combining like terms, we will get
![12x+4.8+20x=16\\32x = 11.2\\x = 0.35](https://tex.z-dn.net/?f=12x%2B4.8%2B20x%3D16%3C%2Fp%3E%3Cp%3E%5C%5C%3C%2Fp%3E%3Cp%3E32x%20%3D%2011.2%3C%2Fp%3E%3Cp%3E%5C%5C%3C%2Fp%3E%3Cp%3Ex%20%3D%200.35)
Therefore cost of pencil is $0.35 and cost of pen is
![0.35+0.40=0.75](https://tex.z-dn.net/?f=0.35%2B0.40%3D0.75)
Answer:
2 real roots
Step-by-step explanation:
If the discriminant is any positive number, that means the quadratic will have 2 real roots, or solutions.
Since the discriminant, 36, is a positive number, this will apply.
So, if the discriminant is 36, there will be 2 real roots.