Answer:
3(1−3x)+2x
1 Expand by distributing terms.
-(3-9x)+2x
2 Remove parentheses.
-3+9x+2x
3 Collect like terms.
-3+(9x+2x)
4 Simplify.
-3+11x
5 Regroup terms.
11x-3
Done
Step-by-step explanation:
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Answer:
The average goes up by 0.6.
Step-by-step explanation:
The average of the original data set, 6,6,7,8,9 is 7.2. The average of the new data set with 3 more cookbooks 6,7,8,9,9 is 7.8. Therefore it increases by 0.6, hope that makes sense :)
Answer:
B
Step-by-step explanation:
Answer:
9.5%
Step-by-step explanation:
To find percentage, we need to find an equivalent number with denominator 100. Multiply both numerator & denominator by 100
38
/400
×
100/100
= (
38 × 100
/400
) ×
1
/100 = 9.5/100
Therefore, the answer is 9.5%