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Marta_Voda [28]

3 years ago

14

The legend on a map states that 1 cm is 20 km. If you measure 9 centimeters on the map, how many kilometers would the actual dis

tance be?

1 answer:

Ulleksa [173]3 years ago

4 0

Making a proportion helps solve this problem. Cm on top, km on bottom.

1 9

---- = ----

20 ?

Cross multiply to get 1? = 180

? = 180.

The distance is 180 km.

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Manny bought a brand new car for $29,750. The car depreciates in value by 12% each year. Find the value of the car after 6 years

Arte-miy333 [17]

Answer: $13,846.02

Step-by-step explanation:

The car cost $29,750 when it was first bought.

It will then depreciate at a rate of 12% per year. This means that the value of the car reduces by 12% per year.

To find the value of the car in the 6th year, you can use the compound interest formula:

= Value of car * ( 1 - rate) ^ no. of years

= 29,750 * ( 1 - 12%)⁶

= ‭13,816.021581824‬

= $13,846.02

6 0

3 years ago

What is the center and radius of the circle that has the equation x+72+y-42=49? Explain.

balu736 [363]

Answer: The center is (-7, 4) and the radius is 7.

Step-by-step explanation:

The equation for a circle usually is:

(x - a)^2 + (y - b)^2 = R^2

where R is the radius, and (a, b) is the center of the circle.

I guess that the equation in this case is:

(x + 7)^2 + (y - 4)^2 = 49

then, in this case we have:

a = -7 and b = 4, then (a, b) = (-7, 4)

this means that the center of our circle is in the point (-7, 4)

and we know that:

R^2 = 49

R = √49 = 7

Then the radius is equal to 7.

3 0

4 years ago

Helllpppp please!!! Will crown people!!

Rudiy27

The answer is (-1,4) or C.
Hope this helps and have a good day!

4 0

3 years ago

Read 2 more answers

Please help me, I will give brainliest and Ill give 15 points. PLEASE HELP ASAP!!!!!!!!!!!!

Svet_ta [14]

Answer:

Formula: 2 $\pi$ r

Subsitute: 2 $\pi$ 2

Solve: (2)(3.14)(2) = 12.56= circumference

In terms of pi: 4 $\pi$

Step-by-step explanation:

8 0

3 years ago

What's the answer to number two

Lubov Fominskaja [6]

You have to show more of the paper so i can calculate it. Sorry

5 0

4 years ago