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dedylja [7]
3 years ago
11

The height of dachshunds is usually 1/3 their length. If Mollie is 20 inches long, how tall is she?

Mathematics
2 answers:
arlik [135]3 years ago
8 0

This is a proportion problem.

Let's make her Length x and her height 1/3 x.

1/3 x = 20 inches

x = 6 2/3 inches

Molly's height is 6 2/3 inches.

Check it.

6 2/3 x 3 = ? (change the mixed number to a fraction)

20/3 x 3 = ? (multiply)

60/3 = ? (divide)

20 inches. Yes, it checks.

g100num [7]3 years ago
5 0

Mollie's height is approximately 6.6667 inches.

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Can anyone help me with this?
erma4kov [3.2K]

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10 is not a square so that one is eliminated (though the y² and the 4x² are squares)

16 is the square of 4, y² is the square of y, and x² is the square. That expression shows a difference of squares.

3 0
3 years ago
The area of a circular plate is 625pi sqaure in. If the radius of the plate is tripled what is the new area
goldenfox [79]

Answer:

5625in²

Step-by-step explanation:

Area of the plate = πr²

625π = πr²

625 = r²

r = √625

r = 25in

If the radius of the plate is tripled, then the new radius will be 3(25) = 75in

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If the radius is tripled, the new area of the plate is 5625in²

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3 years ago
What is a solution to the system? y = x^2 + 2x - 15 y – 4x = -12
astra-53 [7]

9514 1404 393

Answer:

  (x, y) = (-1, -16) or (3, 0)

Step-by-step explanation:

Perhaps you want to solve the system of equations ...

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Substituting the first expression for y into the second equation gives ...

  x^2 +2x -15 -4x = -12

  x^2 -2x -3 = 0 . . . . . . . . add 12

  (x -3)(x +1) = 0 . . . . . . .  factor

Solutions are the values of x that make the factors zero: x = 3, x = -1.

The corresponding values of y are ...

  y = -12 +4x

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The solutions to the system are ...

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5 0
2 years ago
According to the graph, how much money is spent on education?
Nadya [2.5K]

Answer:

16 million

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5 0
3 years ago
Read 2 more answers
If k = -3 what is the value of k + (2k - 10) ?<br><br> A. –19<br> B. –7 <br> C. 1<br> D. –14
gladu [14]

Answer:

A

Step-by-step explanation:

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\Rightarrow (-3)+(2(-3)-10)

Multiply:

=-3+(-6-10)

Subtract:

=-3+(-16)

Add:

=-19

Therefore, our answer is A.

3 0
3 years ago
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