Combine the like terms to make a simpler expression: 8r+7−6r−5
Answers
The final expression after combining like terms is 2r + 2.
We are given that;
The expression 8r+7−6r−5
Now,
According to the search results, combining like terms is a common technique for simplifying algebraic expressions. Like terms are terms that have the same variable and exponent.
To combine like terms, simply add or subtract their coefficients and keep the common variable part.
The coefficient is the number that appears in front of the variable.
In given expression, 8r+7−6r−5, there are two like terms: 8r and -6r.
They have the same variable r and exponent .
To combine them, we add their coefficients: 8 + (-6) = 2.
We keep the common variable part r.
So, 8r - 6r = 2r.
The other two terms, 7 and -5, are also like terms.
They are constants with no variables.
To combine them, we add their coefficients: 7 + (-5) = 2.
So, 7 - 5 = 2.
Therefore, by algebra the answer will be 2r + 2.
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2r + 7 - 5
2r + 2
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The students tickets will dost $184
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Bill needs to earn $28 on Sunday so that the average is $22 each day, the correct option is C.
What is a Graph?
The graph is a mathematical representation of the relation between two objects.
Bill works as a waiter and he keeps track of the tips that he earns daily.
The tip earned on Monday is $14
The tip earned on Tuesday is $12.
The tip earned on Wednesday is $13.
The tip earned on Thursday is $25
The tip earned on Friday is $32
The tip earned on Saturday is $30
Average is the mean of the data set obtained by summing all the values of the data set and then dividing it by the number of data in the set.
The average money that he wants to make by tip is $22
Let the tip earned on Sunday is $x.
Then by the formula of average
22 = ( 14+ 12 + 13+ 25+ 32 + 30 +x ) / 7
Multiplying 22 by 7
154 = 14 + 12 + 13 + 25+ 32 + 30 +x
154 = 126 + x
x = $28
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Answer:
So $28
Step-by-step explanation:
14+12+13+25+32+30=126
126+28=154/7=22
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Answer: acre each
Step-by-step explanation:
×
=
per person
Step by step explanation
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a - b = 0.85 ... a = 0.85 + b
a + b = 1
___________________________
a + b = 1
(0.85 + b) + b = 1
0.85 + 2 * b = 1
2 * b = 1 - 0.85
2 * b = 0.15 /2
b = 0.15 / 2
b = 0.075
a = 0.85 + b = 0.85 + 0.075 = 0.925
The correct result would be: 0.075 and 0.925.