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Vlad [161]
3 years ago
5

Add and Subtract Fractions with unlike denominators

Mathematics
2 answers:
Alex17521 [72]3 years ago
7 0

Answer:

2 1/6

Step-by-step explanation:

2/3+2/4=8/12+6/12=14/12=1 2/12=1 1/6

1 1/6+1=2 1/6

Rom4ik [11]3 years ago
6 0

Answer:

21 hes got the right answer

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The price of an item yesterday was $120 . Today, the price fell to $54 . Find the percentage decrease.
Nesterboy [21]

Answer:

magnitude of decrease = 120 - 54 = 66$

the percentage = (66/100)×100 = 66%

8 0
3 years ago
The courtyard outside East Middle School is in the shape of a rectangle and half-circle.
Nadya [2.5K]

Answer:

The correct option is the third one counting from the top. (5892 m^2)

Step-by-step explanation:

First, we need to remember that:

For a rectangle of length L and width W, the area is:

A = L*W

For a circle of diameter D, the area is:

A = pi*(D/2)^2

Where pi = 3.14

In the image, we can see a rectangle and half a circle, the total area of the image will be equal to the area of the rectangle plus the area of the half circle.

In the image, we can see a rectangle of length L = 100m and width W = 50m

Then the area of the rectangle is:

A = 100m*50m = 5000m^2

And we can see that for the half-circle the diameter is D = 50m

Note that the area of a half-circle is half of the area of a complete circle, then the area of that half-circle is:

A = (1/2)*(3.14*(50m/2)^2) = 981.25 m^2

If we add these two areas we get:

Total area =  5000m^2 + 981.25 m^2 = 5981.25 m^2

If we round it up, we get:

Total area = 5982 m^2

The correct option is the third one counting from the top.

8 0
2 years ago
Graph the image of square CDEF after a dilation with a scale factor of 2, centered at the
Likurg_2 [28]

Answer:

Image attached

Step-by-step explanation:

Origin looks to be (0, -1), so move each point out by 2

4 0
2 years ago
A toy store sells either small dolls or large dolls. If one person buys 6 small dolls and 5 large dolls and spends $65, and anot
FrozenT [24]
Each small doll cost 6.5 dollars and each large doll cost 10 dollars
5 0
3 years ago
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Find 30% of 70 <br><br> please help
tekilochka [14]

Answer:

21

Step-by-step explanation:

3 0
2 years ago
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