Answer:
7 years
Step-by-step explanation:
Because there is no graph, I will just tell you how many years it should take, and you can probably figure it out from there. To start, let's [get out a calculator] find out what 2% of 250 is. This is 5, so we can add 5. Notice that adding 5 to the number does not change 2% of it by much, only by 5/50 or 0.1. So, we can keep adding until we get above 282, which should take 285 minus 250 over 5 times, or 7. So, the answer is 7 years. You can [get out a calculator] and find out that it is indeed 7 years.
9514 1404 393
Answer:
see attached
Step-by-step explanation:
It is easier to construct the center using a compass and straightedge (and pencil). The center is where the medians meet. A median is drawn from a vertex to the midpoint of the opposite side.
A ruler can be used. It is easier if it combines full- and half-scale markings on the same edge. This will let you find the midpoint of a side quickly.
With a compass and straightedge, the usual process of constructing the bisector of a line segment is used.
Divide the price by the quantity to see what's a better deal.
4.25 / 5 = 0.85
So, for each apple it costs 85 cents.
6.56 / 8 = 0.82
So, for each apple it costs 82 cents.
So, the $6.56 for 8 pounds of apples is the better deal.
You forgot to give the choices so I will solve the problem in detail step-by-step explanation and then you can select the correct choice and fill in the answer boxes within your choice correctly.
Given the criteria stated in the problem, we can obtain the following linear system:
The corresponding augmented matrix is
→
→→
The linear system corresponding to the reduced form is
Since is the free variable, we let , where is any real number. Then the general solution can be written as follows:
where is any real number.
However, the definitions of , and imply that the solutions must be non-negative integers. Therefore, we need to derive the possible range of values of such that the general solution make sense for this problem:
Solving the inequalities, we finally obtain all the relevant solutions to the linear system:
where is any integer such that 19 22.
Thus, you just need to apply the above solution to the choices given to you and fill in the answer boxes correctly.