Alrighty, so you said, simplify: 4t (2s - 7)
When there is a variable or number outside of the parenthesis, it means that it wants the whole thing multiplied by that number.
So, your right way to do this is:
4t (2s) + 4t (-7)
Simplify.
8st - 28t
So, the student incorrectly simplified them because she didn't multiply -7 by 4t like they should have.
~Hope I helped!~
Answer:
he has 0.66 of fabrics remaining, 0.66 can be 33/50
Step-by-step explanation:
Answer:
Explanations:
Note that for a sequence to be arithmetic, there must be a common difference, d.
Considering each of the sequences provided:
For -1, 3, -9, 27, -81.........
3 - (-1) = 4
-9 - 3 = -12
27 - (-9) = 36
Since the differences between consecutive terms are not common, this is not an arithmetic sequence.
For 1, -2, -5, -8, -11....
-2-1 = -3
-5 -(-2) = -3
-8 - (-5) = -3
-11 - (-8) = -3
Since there is a common difference, d = -3, the sequence is an arithmetic sequence
For 26, 39, 52, 65, 78.....
39 - 26 = 13
52 - 39 = 13
65 - 52 = 13
78 - 65 = 13
Since there is a common difference of
Rate = distance / time
Rate = 21 miles / 3 hours
Rate = 7 miles / hour
The answer is choice A. Hope this helps.
Answer:
4 boxes left 3 boxes up.
Step-by-step explanation:
