Answer:
4
Step-by-step explanation:
3*4+2=14
12+2=14
14=14
In the x quarts of 2% fat milk, there is 0.02x quarts of fat.
in the y quarts of 4% fat milk there is 0.04y quarts of fat.
together, there is (x+y) quarts of milk, and 0.24 quarts of fat.
the equations are:
x+y=9
0.02x+0.04y=0.24
multiply the first equation with 0.02: 0.02x+0.02y=0.18
subtract this new equation from equaition 2 to eliminate x:
0.04y-0.02y=0.24-0.18
0.02y=0.06
y=3
x=9-3=6
x is twice as much as y.
He used twice as much as the 2% fat milk than the 4% fat milk.
so the first choice is the correct answer.
Answer:
Bar Graph?
Step-by-step explanation:
Answer:
Explained below.
Step-by-step explanation:
First of all, an integer is a whole number that can be either positive, negative or zero.
Now, a drop in temperature signifies a reduction in the temperature.
This means that if for example, the current temperature is 50 °C, a drop in temperature of 10°C would mean that the current temperature would be gotten by subtracting 10 from 50.
Now,current temperature after drop would be;
T = 50 - 10
To prove that it is gotten by adding a negative integer:
This can also be written as;
T = 50 + (-10)
Because from mathematical multiplication signs, minus multiplied by plus gives minus.
Since, T = 50 + (-10), it means that a negative integer of minus 10 has been added to the initial temperature to get the new decreased temperature.
Answer:
8333.33
Step-by-step explanation:
Given that the rate at which radioactive waste is entering the atmosphere at time t is decreasing and is given by Pe^-kt, where P is the initial rate. Use the improper integral
∫^[infinity]_0 Pe^-kt dt
with P = 50 to find the total amount of the waste that will enter the atmosphere for each value of k.
k=0.06
Hence the total amount of waste that can enter the atmosphere when k =0.06 is given by
Substitute limits
=8333.33
