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juin [17]
3 years ago
5

Find the number that makes the ratio equivalent to 3:1

Mathematics
1 answer:
Lapatulllka [165]3 years ago
8 0

Answer:

1 : 3 = 2 : 6 = 3 : 9 = 4 : 12 = 5 : 15 = 6 : 18 = 7 : 21

Step-by-step explanation:

1 : 3 = 2 : 6 = 3 : 9 = 4 : 12 = 5 : 15 = 6 : 18 = 7 : 21.... All of these ratios show the same relationship. Simplifying ratios to the simplest form can be helpful when solving problems that deal with ratios.

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what is the average when you add 122.99%, 108.46% and 102.65%? I don't know how to add percentages. ​
Luba_88 [7]

Answer:

111.33667

Step-by-step explanation:

You add percentages just like you would any other number.

122.9%   +   108.46%  +   102.65% = 334.01%

334.01%/3 = 111.33667

8 0
3 years ago
Which is the equation of a parabola with a directrix at y = −3 and a focus at (5, 3)?
kramer

Answer:

y = 1/12 (x − 5)²

Step-by-step explanation:

We can solve this graphically without doing calculations.

The y component of the focus is y = 3.  Since this is above the directrix, we know this is an upward facing parabola, so it must have a positive coefficient.  That narrows the possible answers to A and C.

The x component of the focus is x = 5.  Since this is above the vertex, we know the x component of the vertex is also x = 5.

So the answer is A. y = 1/12 (x−5)².

But let's say this wasn't a multiple choice question and we needed to do calculations.  The equation of a parabola is:

y = 1/(4p) (x − h)² + k

where (h, k) is the vertex and p is the distance from the vertex to the focus.

The vertex is halfway between the focus and the directrix.  So p is half the difference of the y components:

p = (3 − (-3)) / 2

p = 3

k, the y component of the vertex, is the average:

k = (3 + (-3)) / 2

k = 0

And h, the x component of the vertex, is the same as the focus:

h = 5

So:

y = 1/(4×3) (x − 5)² + 0

y = 1/12 (x − 5)²

3 0
3 years ago
| 13-7 + 3<br> 16 +2.3<br> ||
Reika [66]
My bad if I read it wrong but I got 4.17
3 0
4 years ago
Read 2 more answers
Plss help bring up my grade please
vitfil [10]

The easiest way to solve this problem is by calculating the areas of all the sides and adding them together.

<em>Step 1; Calculate the area of the rectangular front & back</em>

A = 2 * (l * w)

  = 2 * (25 * 10)

<em>Step 2; Calculate the area of the rectangular sides </em>

A = 2 * (1 * w)

  = 2 * (55 * 10)

= 1100 ft^2

3 0
3 years ago
A box has dimensions of 70 inches 101. Feet wide and 8 inches high what is the volume of the box ?
butalik [34]
70 inches (length)
101 feet (wide)
8 inches (high)

101×12= 1,212
*to convert the 101 feet to inches

70×1,212×8= 678,720 inches³ 
3 0
4 years ago
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