For this case what we can do is the following rule of three:
152 -----> 2
x --------> 20
We clear the value of x:
x = (20/2) * (152)
x = 1520 tons
Answer:
in order to locate 20 ounces of diamonds the company needs:
x = 1520 tons of rock

You can get this by using the quadratic equation with a = 7, b = -1, c = -9
Answer:
30 cm
Step-by-step explanation:
Answer:
It is already rounded
Step-by-step explanation: