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Rainbow [258]
3 years ago
9

What's two thirds plus six seventh?

Mathematics
2 answers:
vfiekz [6]3 years ago
7 0

Answer:

32/21

Step-by-step explanation:

multiply (2/3) by (7/7) and (6/7) by (3/3). (14/21) + (18/21) is (32/21)

erastova [34]3 years ago
3 0
The answer is 32/21.

2/3 = 0.666667
6/7 = 0.857143
0.666667 + 0.857143 = 1.523810
1.523810 = 32/21

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given the graph function below which of the following ordered pairs are found on the inverse function
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Answer:

Option A.

Step-by-step explanation:

Graph of function has been given in the figure.

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x     -2        -1         0          1        2

y    -10       -3        -2         -1        6

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4 0
3 years ago
The Organic Cafe has 20 pastries for sale, including 6 poppy seed muffins.
Agata [3.3K]

Answer:

3/10

Step-by-step explanation:

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Answer:

\large\boxed{Q1.\ A_{\triangle PQR}=90\ cm^2}\\\\\boxed{Q2.\ V\approx321\ m^3}

Step-by-step explanation:

Q1.\\\\\text{If}\ \triangle ABC\sim\triangle PQR\ \text{then the quotient of the areas is equal}\\\text{the square of the similarity scale}\ k.\\\\\text{The sides}\ AB\ \text{and}\ QP\ \text{are corresponding}.\ \text{Calculate the scale:}\\\\k=\dfrac{4}{6}=\dfrac{4:2}{6:2}=\dfrac{2}{3}\\\\\text{The area of }\ \triangle ABC=40\ cm^2.\\\\\text{Let the area of}\ \triangle PQR=x,\ \text{then}\\\\\dfrac{40}{x}=\left(\dfrac{2}{3}\right)^2\\\\\dfrac{40}{x}=\dfrac{4}{9}\qquad\text{cross multiply}\\\\4x=(9)(40)\qquad\text{divide both sides by 4}\\\\x=(9)(10)\\\\x=90\ cm^2

Q2.\\\\\text{The formula of a volume of a sphere:}\\\\V=\dfrac{4}{3}\pi R^3\\\\R-radius\\\\\text{We have the diameter}\ 2R=8.5\ m\to R=\dfrac{8.5}{2}\ m=4.25\ m.\\\\\text{Substitute:}\\\\V=\dfrac{4}{3}\pi(4.25)^3=\dfrac{4}{3}\pi(76.765625)=(4)(25.588541)\pi=102.354164\pi\\\\\pi\approx3.14\\\\V=(102.354164)(3.14)\approx321\ m^3

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