Answer:
152 - 4d
Step-by-step explanation:
You had $152
$4 is spent each day
Let d represent the days
Since the money at hand is $152 and $4 is taken away each day then, the algebraic expression which models this situation is
= 152-4d
Answer:
8)b=
9) i don't know bc i can't see
10) x=7
Answer:
a) see below
b) 40x20 meters
Step-by-step explanation:
Write down what you know:
- The area of the enclosure is length*width, so
- The length of the fencing is 80 meters, so
Now we have to combine these two equations above, and get rid of y in the process.
First rewrite the second as:
Then substitute for y in the first:
b) To maximize A, find the zero of the first derivative:
So y = (80-40)/2 = 20 meters.
Answer:
<h3>Finding averages.</h3><h3>Organizing data.</h3><h3>Estimating.</h3><h3>Data gathering.</h3>
Step-by-step explanation:
When we plan an effective budget, we certainly need to gather some data about the theme, which includes, prices, description of the stuff we need. Once we have the data we need, then we must organize it to set priorities, to make the budget effective.
Additionally, estiamting and finding averages are important skills, because we need to estimate how effective is the budget. In fact, maybe we would desing different budgets to compare them and analyse, using averages, which one is the most effective.