Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of he
r items and the number of erasers she purchased.
What is the cost of each eraser?
a
$1.00
b
$2.00
c
$1.50
d
$3.50
What is the cost of each eraser?
a
$1.00
b
$2.00
c
$1.50
d
$3.50
2 answers:
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now you must first distribute the 2 in the brackets. multiply 2 by h and (-29)
now combine "like terms" (-58) with (-58) and 2h with (-h)
now that h has no coefficient (no number in front) you can bring the -116 over to the other side to isolate the variable (h). remember when you bring a number over the equal sign the signs change so (-116) becomes 166.
now add the two terms together
the final result is 157
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First, rewrite the numerator in such a way that the coefficient 2.1 becomes 21:
Divide the coefficient:
Divide the base by subtracting the exponents of the base 10.
Hence, the quotient of the given expression has a coefficient of 3 and the exponent of the base 10 is -4.