divide 400 by 24
400 / 24 = 16.666
so they would need to buy 17 crates
<span>The first equation is
x + y = 27
For the second equation, there are twice as many girls (y) as boys (x), so you write:
y = 2x
Now you have a system of equations:
x + y = 27
y = 2x</span>
Answer:
3/4 and 1/2
Step-by-step explanation:
(4x-3)(2x-1) ≥ 0
If the product of 2 numbers is zero, the one of the numbers must be equal to zero.
(4x-3)(2x-1) ≥ 0
(4x-3) ≥ 0 or (2x-1) ≥ 0
4x ≥ 0+3 2x ≥ 0+1
4x ≥ 3 2x ≥ 1
x ≥ 3/4 x ≥ 1/2
Answer:
The lowest 5% of data ends at 57.73.
Step-by-step explanation:
Let the random variable <em>X</em> follow a Normal distribution with mean μ = 80.6 and standard deviation σ = 13.9.
The lowest 5% of the distribution can be expressed in terms of probability as follows:

Compute the value of <em>x</em> as follows:

The <em>z</em> score such that P (Z < z) = 0.05 is <em>z</em> = -1.645.
**Use the <em>z-</em>table for the for the <em>z</em>-score.
The value of <em>x</em> is:

Thus, the lowest 5% of data ends at 57.73.
Answer:

Step-by-step explanation:
Mr.Mole's digging can be described by a linear model of general equation:

Where "m" is the rate at which he descends. Note that since the function A(t) measure his altitude relative to the ground, the rate "m" must be negative.


The constant "c" is his starting position. To find this value, assign the given data at t = 5 min to the equation above

Therefore, the function A(t) is described by the following formula:
