Core Connections Integrated II, 2015
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Core Connections Integrated II, 2015 View details
1. Section 3.1
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Exercise 62 Page 173

Use the given pattern to complete each of the diamonds.


A.

B.

C.

D.

Practice makes perfect

To find the missing numbers, let's identify the variables using our variable diamond and substitute the correct numbers into our pattern.

Diamond A

In Diamond A, we are given that C=1 and A= 34. Substituting these values into our pattern gives us the following equations. 1 &= 34 * B D&= 34 + B From the first equation, we can calculate B by isolating it on one side.
1=3/4* B
4=3B
4/3=B
B=4/3
We found B. Now, we can substitute it into the second equation to find D.
D=3/4+B
D=3/4+ 4/3
â–Ľ
Add fractions
D=9/12+4/3
D=9/12+16/12
D=9+16/12
D=25/12
â–Ľ
Write fraction as a mixed number
D=24+1/12
D=24/12+1/12
D=2+1/12
D=2 112

Now we can complete our first diamond.

Diamond B

Here we are given that C= 6 and D=5. We want to find the numbers A and B. 6=A* B 5=A+B In this case, let's think of different pairs of numbers which multiply to give us 6. &6=1*5 &6=2*3 Let's check which, if any of these, will match the second condition as well. &1+5=6 * & 2+3=5 The pair A=2 and B=3 works for the pattern. Therefore, this is the correct pair of numbers to complete the diamond.

Diamond C

In the third diamond, we are given that C=5 and B=-1. Substituting these values into our pattern gives us the following equations. 5 &=A * (-1) D&= A+(-1) From the first equation, we can calculate A by isolating it on one side.
5=A *(-1)
-5=A
A=-5
We found A. Now, we can substitute it into the second equation to find D.
D=A+(-1)
D= -5+(-1)
D=-5-1
D=-6
Now we can complete our third diamond.

Diamond D

In this case, we are given that D=4 and A=6. Substituting these values into our pattern gives us the following equations. C&=6 * B 4 &= 6+ B From the second equation, we can calculate B by isolating it on one side.
4=6+B
-2=B
B=-2
We found B. Now, we can substitute it into the first equation to find C.
C=6* B
C=6*( -2)
C=-12
Now we can complete our fourth diamond.