Answer: ill try to do #3 for you
A. money= dependent (depends on days)
days= independent
B. im guessing its this: m=250d
C. $250x 10 days= $2,500 he will need to save
also #4 is y-2x-2
if this is all correct could u mark my answer brainliest if you want to thanks!
The area is given by:
A = x * y = 834
The cost equation is given by:
C = 6 * (2x) + 3 * (y)
We express the equation in terms of a variable:
C (x) = 6 * (2x) + 3 * (834 / x)
Rewriting:
C (x) = 12x + 2502 / x
We derive the equation:
C '(x) = 12 - 2502 / x ^ 2
We match zero:
0 = 12 - 2502 / x ^ 2
We clear x:
x = root ((2502) / (12))
x = 14.4 feet
We look for the other dimension:
y = 834 / x
y = 834 / 14.4
y = 57.9 feet
Answer:
The dimensions of the enclosure that can be erected at minimum cost are:
x = 14.4 feet
y = 57.9 feet
Answer:
1st rule:
21,31,22,74 => 12, 13, 22, 47
12 + 1^2 = 13
13 + 3^2 = 22
22 + 5^2 = 47
47 + 7^2 = 96
96 => 69
=> next number after 74 is 69
2nd rule:
21, 31, 22, 74
21 + 31 + 22 = 74
31 + 22 + 74 = 127
=> next number after 74 might also be 127
Answer:-2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Subtract 78x from both sides.
Step 3: Add 30 to both sides.
Step 4: Divide both sides by -30.
x=−2
Using proportions, it is found that the length of MN is of 48 inches long.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
MP = 8 and PN is 5 times as long as MP, hence:
PN = 5 x 8 = 40.
Then:
MN = MP + PN = 8 + 40 = 48 inches long.
More can be learned about proportions at brainly.com/question/24372153
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