Answer:
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Step-by-step explanation:
Answer:
x=3,y=-10
Step-by-step explanation:
First, we add 21 to both sides of the first equation
13x=-21-6y
+21 +21
13x+21=-6y Now divide by -1 to make it positive
/-1 /-1 /-1
-13x-21=6y
Now we have to subtract 36 on both sides of the second equation
-8x=36+6y
-36 -36
-8x-36=6y
Since both equations equal 6y we can solve the equation by making them "equal" each other
-13x-21=-8x-36 Add 36 to both sides
+36 +36
-13x+15=-8x Add 13x to both sides
+13x +13x
15=5x Divide by 5
/5 /5
x=3
Now use the x value to solve
13(3)=-21-6y
39=-21-6y Add 21 to both sides
+21 +21
60=-6y
/-6 /-6
y=-10
Hope this helped!
Answer:
n(A) = 3
n(B) = 6
-6 ∈ A => True
-14 ∈ A => False
k ∈ B=> True
Q∈B = >False
Step-by-step explanation:
Given
A is the set of integers greater than - 7 and less than - 3
B={c, h, j, k, v, y}
For set A:
The integers greater than -7 will be -6,-5 ....
As the set has integers less than -3, the set will be:
<u>Cardinalities:</u>
Cardinality is the number of elements in the set.
So,
Now for the statements:
-6 ∈ A True as -6 is a member of set A
-14 ∈ A False as -14 is not a member of A
k ∈ B True
Q∈B False
Hence,
n(A) = 3
n(B) = 6
-6 ∈ A => True
-14 ∈ A => False
k ∈ B=> True
Q∈B = >False
The answer would be 3.4 because 1/3 of 5 is 1.6
Answer: 15
a=5, b=3
3a= 3x5= 15