Answer:
1 golf ball : $2.50
Step-by-step explanation:
- You can first divide 6 and 15 by 3, and get 2 and 5.
- Then, you divide 5 by 2, which is 2.5
- Therefore, the unit rate is 1 golf ball : $2.50
Since the surface is the top part of a sphere centred on the origin, the directions of steepest descent are any vector originating from the origin (0,0).
At (5,5), the direction would be dictated by the line joining (5,5) and the origin (0,0), i.e. along <5,5> or equivalently along <1,1>.
You can also go through vector calculus to arrive at the same result.
Answer:
20 years old
Step-by-step explanation:
Let us assume that the son's age is x.
Therefore,
2.5x = 55 - 5
2.5x = 50
x = 20 years old
hope this helps :)
Step-by-step explanation:
12x>7(4x+5)-19
12x>7*(4x+5)-19
12x>28x+35-19
12x-28x>16
-16x>16
16x>-16
x>-16/16
x<-1
X=1/3 or x=-2
explanation:
Find factors of 3 and 2 which subtract to make 5.
We should realise that (3x2) - 1 = 5.
Find the cross products and subtract to get 5. Add in the signs. One of the factors must be 0.