what is a equivalent way to write 3 times 22 + 3 times 20
A: 5 x 2 (r + 7 = 2 x 5 (r+ 7)
B: 5 + 2 r + 7 = 2 + 5 r + 7
C: 5 divided by 2 r+7 =2 divided by 5 r+ 7
D: 5 - 2 r + 7= 2 - 5 r+ 7
My answer is B
B: 5 + 2 r + 7 = 2 + 5 r + 7
12 + 2r += 9 + 5r
3 = 3r
1 = r
That doesn't look like 3 times 22 + 3 times 20 = 66 + 60 = 126
I think your answer set doesn't match the question, anyway ....
3 times 22 + 3 times 20
= 3(22) + 3(20)
= 3(20) + 3(2) + 3(20)
= 6(20) + 6
= 120+6
= 126
3(22+20) = 3(42)
To determine the equivalent way to write the expression "3 times 22 + 3 times 20," we need to simplify the expression on both sides of the given options and choose the one that matches.
Option A: 5 x 2 (r + 7) = 2 x 5 (r + 7)
Let's simplify both sides of the equation:
On the left side, 5 x 2 = 10
On the right side, 2 x 5 = 10
Therefore, the equation becomes:
10 (r + 7) = 10 (r + 7)
Option B: 5 + 2 r + 7 = 2 + 5 r + 7
Let's simplify both sides of the equation:
On the left side, we have 5 + 7 = 12
On the right side, we have 2 + 7 = 9
Therefore, the equation becomes:
12 = 9
But this is not a true statement, so Option B is incorrect.
Option C: 5 divided by 2 r + 7 = 2 divided by 5 r + 7
To simplify this expression, we need to evaluate the divisions:
On the left side, 5 divided by (2r + 7)
On the right side, 2 divided by (5r + 7)
Since the denominators are different, we cannot equate the two sides, so Option C is incorrect.
Option D: 5 - 2 r + 7 = 2 - 5 r + 7
Let's simplify both sides of the equation:
On the left side, we have 5 + 7 = 12
On the right side, we have 2 + 7 = 9
Therefore, the equation becomes:
12 = 9
Again, this is not a true statement, so Option D is incorrect.
Based on the analysis above, the equivalent way to write "3 times 22 + 3 times 20" is not given among the provided options.