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2 years ago

11

Joshua is driving to visit his friend who lives 165 miles away. He has driven 25 miles, and now he hopes to drive 40 miles per h

our the rest of the way. How many more hours will it take Joshua to reach his friends house

2 answers:

GarryVolchara [31]2 years ago

8 0

Answer: akcbebvu9pewgrvw8ugvubeufhfhef89h8efhw9a9s

ale4655 [162]2 years ago

3 0

Answer:

top one is correct yessss

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Graph the image of the polygon after a reflection in the line y=x<br><br> PLEASE HELP

bazaltina [42]

Answer:

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Step-by-step explanation:

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2 years ago

The ratio of the circumference of two circles is 3:2.What is the ratio of their area

Nezavi [6.7K]

The ratio of their area is 9/4

<h2>Explanation:</h2>

We use ratios to compares values. In this exercise, we are comparing the circumference of two circles, which is:

$3:2$

and we want to know what is the ratio of their area. Recall that the circumference of a circle is given by:

$C=2\pi r \\ \\ \\ Where: \\ \\ C:Circumference \\ \\ r:Radius \ of \ the \ circle$

If we define:

$C_{1}: \ Circumference \ of \ circle \ 1 \\ \\ C_{2}: \ Circumference \ of \ circle \ 2 \\ \\ r_{1}: \ Radius \ of \ circle \ 1 \\ \\ r_{2}: \ Radius \ of \ circle \ 2$

Then, the ratio of the circumference of two circles is 3:2 is:

$\frac{C_{1}}{C_{2}}=\frac{2\pi r_{1}}{2\pi r_{2}}=\frac{3}{2} \\ \\ \therefore \frac{r_{1}}{r_{2}}=\frac{3}{2}$

The area of a circle is given by:

$A=\pi r^2 \\ \\ A:Area \\ \\ r:Radius$

So the ratio of their area can be found as:

$\frac{A_{1}}{A_{2}}=\frac{\pi r_{1}^2}{\pi r_{2}^2} \\ \\ \\ A_{1}:Area \ of \ circle \ 1 \\ \\ A_{2}:Area \ of \ circle \ 2$

So:

$\frac{A_{1}}{A_{2}}=\frac{r_{1}^2}{r_{2}^2}=\left( \frac{r_{1}}{r_{2}} \right)^2 \\ \\ \frac{A_{1}}{A_{2}}=\left(\frac{3}{2}\right)^2 \\ \\ \boxed{\frac{A_{1}}{A_{2}}=\frac{9}{4}}$

<h2>Learn more:</h2>

Unit rate: brainly.com/question/13771948#

#LearnWithBrainly

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3 years ago

Find the value of x.

NemiM [27]

Answer:

x=10

Step-by-step explanation:

6(x+2)=8(x-1)

x=10

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2 years ago

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What is the answer to 5x-14=8x+4

Natalija [7]

Answer:

x= -6

Step-by-step explanation:

5x-8x=14+4

-3=18

x= -6

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3 years ago

Guysss I need help ASAPPPP I need to get this done todayyy :(((

PIT_PIT [208]

Answer:

see below

Step-by-step explanation:

t = 7m

Let m = 6

t = 7*6 = 42

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2 years ago

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