9514 1404 393
Answer:
B, E, F
Step-by-step explanation:
A. 4x and 5 + x
B. 2b + b and 3b
C. 3x and 3 + x
D. a ÷ 1/3 and 1/3 a
E. a ÷ 1/3 and a × 3
F. 1a and a
_____
<em>Comment on the above</em>
ax is multiplication of x by 'a'. a+x is addition. They are different operations.
x/(1/3) is not the same as x(1/3). Multiplication and division are different operations.
The right answer is 19.9
Step-by-step explanation:
Given data set is;
(18, 23, 17, 25, 15, 18, 18, 16, 27, 25, 18, 19)
Sum of terms = 18+23+17+25+15+18+18+16+27+25+18+19 = 239
Number of terms in data set = 12
Average =
Average =
Average = 19.91
The average of data set is 19.91
The right answer is 19.9
Keywords: average, addition
Learn more about addition at:
#LearnwithBrainly
Answer:
<u><em>b = (c+d)/a</em></u>
Step-by-step explanation:
<u><em>ab-d=c</em></u>
<em>ab-d</em><u><em>+d</em></u><em>=c</em><u><em>+d</em></u>
<em>ab=c</em><u><em>+d</em></u>
<em>(ab)</em><u><em>/a</em></u><em> = (c+d)</em><u><em>/a</em></u>
<u><em>b = (c+b)/a</em></u>