The 2 {} you have are called sets. The union is what the 2 sets have in all.
You can think of this as you have green blue yellow cards. and your friend have green orange red cards. What colors do you have if you combine your cards.
Now that's just an example, in the question's case is what numbers does the 2 sets have in total.
Therefore the union of these 2 sets are {9,10,11,13}
Hope it helps!
Small bag = 2x
Medium bag = 3x
Large bag = 7x
2x + 3x + 7x = 60
12x = 60
x = 60/12
x = 5
Small bag = 2(5) = 10 kg
Medium bag = 3(5) = 15 kg
Large bag = 7(5) = 35 kg
Done.
Answer:
593 1/3 OR 593.3 (the 3 is repeating)
Step-by-step explanation:
add all the numbers up then divide by the number of results (6)
Answer:
So 2 and 4
Step-by-step explanation:
The difference between a pyramid and prism is that a prism has two bases. A pyramid only has one base. The sides of the pyramid will always be triangular in shape.
Answer:
<em>a ) y = 2,</em>
<em>b ) x = 5,</em>
<em>c ) x = - 3,</em>
<em>d ) y = 4</em>
Step-by-step explanation:
a )
b )

c )

d )

<em>Hope that helps!</em>