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slava [35]
3 years ago
7

Dylan and Marcella decided to build a fence. Dylan worked alone for 2 hours. Marcella arrived, and they worked 1 hour together.

Dylan left, and Marcella worked 1 hour alone. The fence was then ½ done. Individually, it takes Dylan 3 more hours to build a fence than Marcella. How long would it take Dylan and Marcella each to build the fence by themselves?
Mathematics
1 answer:
aksik [14]3 years ago
4 0
Do you have a picture?
You might be interested in
3(6a);for a=2
Nutka1998 [239]

Answer:

1.36

2.-60

3.30

hope this helps

7 0
3 years ago
Read 2 more answers
In the data set below, what is the mean absolute deviation? 9,8,3,2,5 If the answer is a decimal, round it to the nearest tenth.
alexandr402 [8]

Answer:

3

Step-by-step explanation:

9,8,3,2,5

3

3/5=0.6

0.6

3 0
3 years ago
Susan is on vacation at a tropical bay that has three islands. She rents a boat on Island A and plans to navigate to Island C, w
Sauron [17]

She should navigate at 45° 34' 22.7856" to go to Island C.

Given that Susan is on vacation at a tropical bay that has three islands, and she rents a boat on Island A and plans to navigate to Island C, which is 8 miles away, to determine, based on the figure below, at what angle should she navigate to go to Island C, the following calculation must be carried out, applying the cosine law:

  • 11^2 = 8^2 + 15^2 - (2 x 8 x 15) x cos A
  • Cos A = (8^2 + 15^2 - 11^2) / (2x8x15)
  • A = arc cos (8^2 + 15^2 - 11^2) / (2x8x15)
  • A = arc cos (64 + 225 - 121) / 240
  • A = arc cos (168 / 240)
  • A = arc cos 0.7
  • A = 45.572996

Therefore, she should navigate at 45° 34' 22.7856" to go to Island C.

Learn more in brainly.com/question/24077856

5 0
3 years ago
a local hamburger shop sold a combined total of 456 hamburgers and cheeseburgers. The number of cheeseburgers sold was three tim
Ganezh [65]
H + c = 456
c = 3h

h + 3h = 456
4h = 456
h = 456/4
h = 114 <=== hamburgers sold

c = 3h
c = 3(114)
c = 342......cheeseburgers sold
4 0
4 years ago
Please find the general limit of the following function:
valentinak56 [21]

Answer:

The general limit exists at <em>x</em> = 9 and is equal to 300.

Step-by-step explanation:

We want to find the general limit of the function:

\displaystyle \lim_{x \to 9}(x^2+2^7+(9.1\times 10))

By definition, a general limit exists at a point if the two one-sided limits exist and are equivalent to each other.

So, let's find each one-sided limit: the left-hand side and the right-hand side.

The left-hand limit is given by:

<h3>\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1 \times 10))</h3>

Since the given function is a polynomial, we can use direct substitution. This yields:

=(9)^2+2^7+(9.1\times 10)

Evaluate:

300

Therefore:

\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1 \times 10))=300

The right-hand limit is given by:

\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))

Again, since the function is a polynomial, we can use direct substitution. This yields:

=(9)^2+2^7+(9.1\times 10)

Evaluate:

=300

Therefore:

\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))=300

Thus, we can see that:

\displaystyle \lim_{x \to 9^-}(x^2+2^7+(9.1\times 10))=\displaystyle \lim_{x \to 9^+}(x^2+2^7+(9.1\times 10))=300

Since the two-sided limits exist and are equivalent, the general limit of the function does exist at <em>x</em> = 9 and is equal to 300.

8 0
3 years ago
Read 2 more answers
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