[-2 3] times [2
1]
comes out to -2(2)+3(1) = -1. Eliminate the first answer choice, due to
the presence of that -7 instead of -1.
[-2 3] times [0
-3]
comes out to - 9. This matches answer choices #2, #3 and #4.
[3,-4][2
1]
comes out to 6-4, or 2. Matches #2, #3, #4.
[3, -4][0
-3]
comes out to +12, which matches answer choice #4.
Answer choice #4 is the correct one.
Review matrix multiplication if need be. Feel free to ask questions here and now if need be.
30 newspapers/2 piles = 15 newspapers/1 pile
It’s just reducing 30/2 into a fraction with a denominator of 1.
First, find 15% of 80 and add it to 80
15% = 0.15
0.15 × 80 = 12
80 + 12 = 92
Remember that Tom will add 5 more for the judges
92 + 5 = 97
Your answer is D. 97 chairs
Hope this helps :)
Answer:
1. $90
2. $85
3. $ 149.6Step-by-step explanation:
