Emma uses a 250-meter roll of crepe paper to make steamers. How many dekameters of crepe paper does Emma use?

Answers

Answer 1

Answer: A dekameter (or decameter) first needs to be translated into how many meters. deka means 10, so a dekameter must be 10 meters. So we then divide 250 by 10, and come up with 25 dekameters.

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I do not get how to do Simpliflyng Radicals.

Answers

First step: Find out the prime numbers that make up the radical, for example, 120 would be 2x2x2x5x3
Second step: If there is 2 of the same number that repeats just put that number in the front of the resulting radical
Third: Just multiply the remaining radicals together and put the number in front of it.
Now you have
$2 √(30)$

Example Simplify √252
Step 1: Find the prime factorization of the number inside a radical.252 = 2 x 2 x 3 x 3 x 7
Step 2: Determine the index of the radical. In this case, the index is two because it is a square root, which means we need two of a kind.√252 = √2 x 2 x 3 x 3 x 7
Step 3: Move each group of numbers or variables from inside the radical to outside the radical. In this case, the pair of 2’s and 3’s moved outside the radical.2 x 3√7
Step 4: Simplify the expressions both inside and outside the radical by multiplying.6√7

Hope that was clear!

Find the least common multiple of (5x+15) and (3x+9)

Answers

x and 3 is the answer i think

Answer:

Step-by-step explanation:

What is the slope of a line that passes through the points (20,74) and (100,90)

Answers

Answer:

m=1/5

Step-by-step explanation:

Formula of the Slope

m = (y2 - y1)/ (x2 - x1)

(x1 , y1) = (20, 74)

(x2, y2) = (100, 90)

put values

m = (90 - 74) / (100 - 20)

m = 16 / 80 = 1/5

Answer:

$\huge\boxed{\bold{slope=(1)/(5)}}$

Step-by-step explanation:

$\text{The formula of a slope:}\n\nm=(y_2-y_1)/(x_2-x_1)\n\n\text{We have two points}\ (20,\ 74)\ \text{and}\ (100,\ 90).\n\n\text{Substitute:}\n\nm=(90-74)/(100-20)=(16)/(80)=(16:16)/(80:16)=(1)/(5)$

Four runners competed in a 10 kilometer relay race. Each runner ran the same distance. What was the distance?

Answers

Ok i think they ran their own race so here goes nothing. Four runners so you need four in your problem so 4x now. Lets add the ten four ten kilometers i each race. So you final awnsere is 4x10=40 kilometers

this question doesn't make sense. are you asking how far did all 4 runners run together ??

PLEASE HELP! A store sells small notebooks for $8 and large notebooks for $10. If a student buys 6 notebooks and spends $54, how many of each size did he buy?

Answers

let small notebook = s, large notebook = b

Set the system of equations:

54 = 8s + 10b

s + b = 6

First, solve for b. Isolate the s.

s = 6 - b

Plug in 6 - b for s

54 = 8(6 - b) + 10b

Distribute 8 to all terms within the parenthesis

54 = 48 - 8b + 10b

Simplify

54 = 48 + 2b

Isolate the b. Note the equal sign. What you do to one side, you do to the other. Subtract 48 from both sides

54 (-48) = 48 (-48) + 2b

6 = 2b

Divide

6/2 = 2b/2

b = 6/2

b = 3

----------------------------------------------------------------------------------------------------------------

Plug in b for 3 in one of the equations.

s + b = 6

s + 3 = 6

Isolate the s. Subtract 3 from both sides

s + 3 (-3) = 6 (-3)

s = 6 - 3

s = 3

------------------------------------------------------------------------------------------------------------------

small notebook = 3, large notebook = 3

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hope this helps

Hi AlexBombela10,

Your Question:

A store sells small notebooks for $8 and large notebooks for $10. If a student buys 6 notebooks and spends $54, how many of each size did he buy?

Solution:

54 - 8 = 46

46 - 8 = 38

38 - 8 = 30

30 - 10 = 20

20 - 10 = 10

10 - 10 = 0

Final Answer:

He bought 3 small notebooks

He bough 3 large notebooks

Hope This Helps!

The product the lies between__and__. 3×3/4?

Answers

Saying 3/4 * 3 is the same thing as saying 3/4 of 3. Imagine you have 3 pies, each cut into 4 slices. That would be 3 * 4 = 12 slices of pie, right?
So when there's 12 slices, that would be 4/4 of the pies, since all the pieces are there.
To find out how many pies we would have with 3/4 of the pie left, we just need to multiply the original equation.

3 * 3/4 = 2 1/4

The product of those two numbers lies between 2 and 3.
Hope that helped =)

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