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vitfil [10]
3 years ago
13

John wants to create a line of dominoes 18 inches long with each domino spaced 1 1/2 in.apart.how many dominoes will he need

Mathematics
2 answers:
AysviL [449]3 years ago
7 0

Answer:

12

Step-by-step explanation:

if the line is 18 inches long and a 1.5 space apart then u divide them and 18 divided by 1.5 is 12

kherson [118]3 years ago
6 0

Answer:

12

Step-by-step explanation:

18/1.5=12

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Find the multiplicative inverse of 2/3 * - 5/7​
boyakko [2]

Answer:

-\frac{21}{10}   is the required multiplicative inverse.

Step-by-step explanation:

First of all simplify the given expression.

\frac{2}{3}\cdot \frac{-5}{7}=-\frac{2\cdot \:5}{3\cdot \:7}=-\frac{10}{21}

Multiplicative inverse of any number when multiplied gives 1.

The multiplicative inverse of  -\frac{10}{21}  is -\frac{21}{10}  because:

-\frac{10}{21}\times -\frac{21}{10}=1

Best Regards!

6 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!
loris [4]
For the first one for # 1 is x=2(y−5)<span>

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4 0
3 years ago
A regular hexagon is inscribed in a circle of radius 77 m. Find the length of a side of the hexagon.
marysya [2.9K]
Hi there!

We'll use the image below as a reference diagram. As you can see, the hexagon is divided into 6 triangles. And, one red line (center to point on the hexagon) would be the radius. Since we know that all of the triangles are equilateral triangles, and the hexagon is a regular hexagon, we know that one side of the hexagon is equal to 77m. 
(If the circle actually has a diameter (all the way across the circle), the answer would be 38.5m)

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!

3 0
4 years ago
Helpp please!!<br> Please simplify the problem and explain.
g100num [7]
So I’m a 5th grader...but I wanted to see if I could help you so...this is how I did it.....first I started with the top, 6-2 which is 4 and then I did 4-4 which is 0 then the answer is....( put 2 on the bottom and 0 on the top. I hope I got it right ;(
4 0
3 years ago
1. In Brad's golf bag, he has 4 times more white golf balls than yellow golf balls. He has 20 white golf balls in his bag. Which
erma4kov [3.2K]
The answer is C, the equation is 4y = 20
6 0
3 years ago
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