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DIA [1.3K]
3 years ago
12

Jenny can hike 5 kilometers in 30 minutes. What is Jenny’s average hiking speed in kilometers per hour?

Mathematics
1 answer:
marin [14]3 years ago
6 0

Answer:

1

Step-by-step explanation:

5*2 is 1

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Solve the system of equations. x+2y=6; 3x-14y=8 please help
ira [324]
Let x = 6 = 2y so
3(6 - 2y) + 14y = 8 so
18 - 6y + 14y = 8 so
8y = -10 and
y =  \frac{ - 10}{8} =   - \frac{5}{4}  \\  \\ since \: x = 6 - 2y \\ 6  - 2( \frac{ - 5}{4}) = x  \: so \\ x = 6 +  \frac{10}{4} =  \frac{24}{4} +  \frac{10}{4} =  \frac{34}{4} =  \frac{17}{2}

8 0
3 years ago
~ P L E A S E ~ H E L P ~ M E ~ O U T ~
DerKrebs [107]
Formula for area of a circle: Pi * R^2.
Radius = diameter/2
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Formula and equation:
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7 0
3 years ago
The surface areas of two similar pyramids are 48 m2 and 108 m2 Find the scale factor.
miskamm [114]

Answer:

\boxed{ \text{B. }\frac{2}{ 3}}

Step-by-step explanation:

The scale factor (C) is the ratio of corresponding sides of the two pyramids.

The ratio of the areas is the square of the scale factor.

\frac{A_{1}}{ A_{2}} =C^{2}\\ \\\frac{48 }{108} = C^{2}\\\\ \frac{4}{9} = C^{2}\\\\ C = \frac{2}{3}\\\\

The scale factor is \boxed {\frac{2}{3}}.

7 0
4 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!
RideAnS [48]
The answer is 60° because it is the same as what is across
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If a and b are real numbers such that a > 0 and b < 0, then which of the following is equivalent
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