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4 years ago

FAN AND MEDAL!!

1 answer:

8 0

Circumference of a circle, C = 2* pie * r Dividing through by 2 * pie; we have C/ 2 * pie = r r = C/ 2 * Pie * r The first answer r = C over 2 pie.

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Simplify this algebraic expression. y-3/3+12 A.y+11 B.y-5 C.y+13 D.y-11

arlik [135]

Answer:

A. y+11

Step-by-step explanation:

-3/3 = -1

12 + ( -1 ) = 11

y + 11

hope this helped :)

3 0

3 years ago

Evaluate 8j -k+14 when j = 0.25 and k =1

Amiraneli [1.4K]

Substitute
8(0.25) -1+14 = 15

7 0

3 years ago

Read 2 more answers

Need the steps and answer!

vaieri [72.5K]

Answer:

(4,0)

Step-by-step explanation:

add the 2 equations together

6x = 24

x=4

put x into the first equation

16+3y=16

y=0

6 0

3 years ago

Point R divides in the ratio 1 : 3. If the x-coordinate of R is -1 and the x-coordinate of P is -3, what is the x-coordinate of

dimaraw [331]

Answer:

C. 5

Step-by-step explanation:

Point R divides the line segment PQ internally. The x-coordinate of the point which divides the line segment in ration m:n internally can be calculated as:

$x=(\frac{mx_{2}+nx_{1}}{m+n} )$

Here, x1 is the x-coordinate of 1st point, x2 is the x-coordinate of 2nd point, x is the x-coordinate of point dividing the segment. We have all the values except x2. Using the given values in above formula, we get:

$-1=\frac{x_{2}+3(-3) }{1+3} \\ \\-4=x_{2}-9\\\\ 5=x_{2}$

Thus the x-coordinate of point Q will be 5

The x-coordinate of Q is 5.

7 0

4 years ago

Seven men make 21 toys in 30 minutes. How long would it take 21 men?

konstantin123 [22]

Answer:

10 minutes

Step-by-step explanation:

Assuming men and minutes are interchangeable, 3 times as many men can be assumed to assemble the toys in 1/3 as much time.

21 men can make 21 toys in 30/3 = 10 minutes.

_____

Additional comment

We have to assume there are no rate-limiting steps in the process. This assumption is not always valid.

6 0

2 years ago