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Debora [2.8K]
3 years ago
12

How do you convert unit rates?

Mathematics
1 answer:
sammy [17]3 years ago
3 0
\sf \frac{13~cm}{1~minute} \times \frac{60~minutes}{1 ~hour}=\frac{780~cm}{1~hour}

Your answer is 780
You might be interested in
Which coordinate pair identifies the center of the circle represented by 4x2 + 4y2 − 16x − 24y + 36 = 0.
Flura [38]

Answer

Find out the which coordinate pair identifies the center of the circle represented by 4x² + 4y² − 16x − 24y + 36 = 0.

To prove

The general equation of the circle is

(x - h)² + (y - k)² = r²

Where h,k are the centre and r is the radius.

4x² + 4y² − 16x − 24y + 36 = 0

Divided both side by 4.

x² + y² − 4x − 6y + 9= 0

Add and subtract 4 and 9

x² + y² − 4x − 6y + 4 -4 +9 - 9 +9= 0    

x² + y² − 4x − 6y + 4 -4 + 9 - 9 +9= 0    

x² + 4 - 2× 2 × x + y² + 9 - 2 × 3 × y = 9 + 4 - 9

using the formula ( a + b )² = a² + b² +2ab

(x - 2)² +  (y - 3)² = 2²

Compare this with the general equation of circle.

Thus

h = 2 , k = 3

Option A is correct .

5 0
3 years ago
5 feet, 7 inches minus 3 feet, 8 inches is equal to 2 feet, 9 inches .. true or false ??
zubka84 [21]

Answer:false

Step-by-step explanation:

5-3=2 7-8 you can't do so it's false

5 0
3 years ago
Three attributes of a square
natali 33 [55]
Four 90 degree angles, two pairs of parallel lines, and congruent sides.

Hope this helped!
7 0
3 years ago
Read 2 more answers
Please help me thank you
hichkok12 [17]

solution for #18 is C and for #19 is D

8 0
3 years ago
Read 2 more answers
Which best describes how to solve the equation for x.
prohojiy [21]

Answer:

B. multiply both sides by c.

Step-by-step explanation:

To solve the equation for x, you have to isolate the x variable on one side of the equation. To do this, do the opposite of any operation applied to x to remove other variables from the x's side of the equation:

x/c = d

multiply both sides of the equation by c to isolate x:

(x/c) * c = d * c

x = dc

Now x can be solved for.

Hope this helps :)

7 0
3 years ago
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