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JulijaS [17]
3 years ago
8

At a pet store, one fifth of the animals are cats and three-fourth are fish. There are 40 animals at the pet store. How many are

mot cats or fish? Show your thinking

Mathematics
1 answer:
dybincka [34]3 years ago
7 0

Answer:

2 animals

Step-by-step explanation:

Number of animals=40

Fraction of fish=3/4

=>number of fish=3/4*40=30

Fraction of cats=1/5

=>number of cats=1/5*40=8

Animals which are not cats or fish are=total number of animals-(number of cats + number of fish)

Animals which are not cats or fish=40-(8+30)

40-38

2 animals


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In segment AC, the midpoint is B. if segments AC = 5x-9 and AB= 2x what is the measure of AC? Can you show their work on paper o
vodka [1.7K]

Answer:

The answer to your question is: AC = 36

Step-by-step explanation:

Data

Segment AC with midpoint = B

AC = 5x - 9

AB = 2x

AC = ?

Process

           total length = AC  but B is the midpoint so AB + AB = CA

                                                                                  2AB = CA

                Substitution        2(2x) = 5x - 9

                                             4x = 5x - 9

Solve for x                           4x - 5x = -9

                                             -1x = -9

                                              x = -9/-1

                                             x = 9

Finally,            AC = 5x - 9

                             = 5(9) - 9

                             = 45 - 9

                             = 36

4 0
2 years ago
What is 0.8333 forever in a fraction
Nady [450]

There are a couple of different approaches you can use for this. Here's one.

1. Determine how many digits repeat. (There is just one repeating digit.)

2. Call your number x. Multiply x by 10 to the power of the number of digits found in step 1.

x = 0.8\overline{3}\\10^{1}x=8.3\overline{3}

3. Subtract the original number, then solve for x.

10x-x=9x=8.3\overline{3}-0.8\overline{3}=7.5\\\\x=\dfrac{7.5}{9}=\dfrac{5}{6}

_____

If you recognize that 0.333... (repeating) is 1/3, then you know that 0.0333... (repeating) is 1/10×1/3 = 1/30. Add that to 0.8 = 4/5 and you get

... 4/5 + 1/30 = 24/30 + 1/30 = 25/30 = 5/6

7 0
3 years ago
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What is the measure of 1 in the trapezoid?<br><br><br><br> 110°<br> 55°<br> 165°<br> 85°
Vinil7 [7]
I think the answer is B. 55. Butbi would cheat to make sure.
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Answer:

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We can use the Pythagorean theorem to solve

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An ellipse has a center at the origin, a vertex along the major axis at (10, 0), and a focus at (8, 0).
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Answer:

In standard form x^2/64 + y^2/100 = 1

Step-by-step explanation:

The major axis is the y axis because 10 has a larger value than 8.  

8x8 = 64

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