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olga_2 [115]
2 years ago
8

Algebraic expressions describe a ________________. They can be as

Mathematics
1 answer:
Jobisdone [24]2 years ago
7 0

Answer:

Algebraic expressions describe an algebraic operation. They can be as simple as a number, or they can include integer constants of numbers, variables, and symbols.

Step-by-step explanation:

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“x is at most –5 or at least 7.”
uysha [10]
<span>x is at most –5 or at least 7 is written as x  \leq -5  \ or \ x \geq 7</span>
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The equation for the line of best fit for a data set is y = 2x + 1.5. If the point (1, 4) is in the data set, what is the residu
andriy [413]
It is related to econometrics, however using simple algebraic logic we can solve this problem. General formula with residual is y=2x+1.5+r, where r is a residual. Plugging the pair into the formula, we obtain that 4=2*1+1.5+r and r=0.5
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3 years ago
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Find the least common denominator for these two rational expressions.
lbvjy [14]
\frac{y}{y^{2}-1},\ \frac{y}{y^{2}-8y+7}
=\frac{y}{(y-1)(y+1)},\ \frac{y}{(y-1)(y-7)}
=\frac{y(y-7)}{(y-1)(y+1)(y-7)},\ \frac{y(y+1)}{(y-1)(y+1)(y-7)}

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8 0
3 years ago
Corinne bought 5 bags of chips and 4 jars of dipping sauce for $21.82. At the same prices, Ginger bought 4 bags of chips and 3 j
AURORKA [14]
<h2>$2.98</h2>

Step-by-step explanation:

       5 bags of chips and 4 jars of dipping sauce cost $21.82. Also, 4 bags of chips and 3 jars of dipping sauce cost $16.86.

       This problem can be modeled using linear equations in two variables.

Let c be the cost of a bag of chip and s be the cost of a jar of dipping sauce.

The information yields the equations

       5c+4s=21.82,4c+3s=16.86\\\textrm{Multiply first equation by 4 and second equation by 5}\\20c+16s=87.28,20c+15s=84.3\\\textrm{Subtracting second equation from the first one}\\s=\$2.98

∴ A jar of dipping sauce costs \$2.98.

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3 years ago
If 4 tsp of salt are needed for 5 dozen cupcakes, how many tsp of salt are needed for 11 dozen cupcakes?
kenny6666 [7]

Answer:

8.8 tsp

Step-by-step explanation:

4/5=x/11

cross multiply

44=5x

44/5=x

x=8.8

5 0
2 years ago
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