Since the dimension of the scale model is fourth of dimensions of the room, divide by 4 the given dimensions.
new dimensions:
= 18 ft / 4 = 9/2 ft
= 16 ft / 4 = 4 ft
The area is calculated by multiplying the dimensions,
Area = (9/2 ft)(4 ft) = 18 ft²
Therefore, the area of the scale model is equal to 18 ft².
There are more atoms in average human body than grains of sand on Earth. We can know it because we can see that atoms' number (7 * 10^27) is being multiplied by much greater number (with 9 zeros more) than grain's number (7.5 * 10^18).
Answer:
76.881 minutes
Step-by-step explanation:
If we look for the value of 25% in the normal distribution table, it corresponds to z = - 0.674
I mean:
P( Z < - 0.674) = 0.25
Now, we know that the formula in this case would be
cut off time = m - z*sd
where m is the mean and sd is the standard deviation.
replacing these values we have left:
cut off time = 72.5 - (-0.674)*6.5
cut off time = 76.881
Therefore the time limit would be 76.881 minutes
Answer:
The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75
Step-by-step explanation:
Let
x-----> the cost of one donuts
y ----> the cost of one cinnamon
we know that
-----> equation A
-----> equation B
Solve the system by graphing
Remember that the solution of the system of equations is the intersection point both graphs
using a graphing tool
The solution is the point (1.25,1.75)
see the attached figure
therefore
The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75
