If a penny is 0.061 inch thick what is the value of the 6 in the thickness of a penny
1 answer:
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Answer:
y = - or - 15.75
Step-by-step explanation:
Order of operations.
y + = y -
-
Subtract y from each side.
y - y + = y - y -
-
= -
-
Add
to each side
+
= -
+
-
+
= -
Find the common denominator for
and
, which is 4
*
+
= -
+
= -
= -
Multiply each side by 3
* 3 = -
* 3
= - y Divide each side by -1
y = - = - 15
y = - 15.75
Answer:
Step 3, because the solution should also include all the values for x between the two given values
Step-by-step explanation:
step 1
we have
step 2
The graph in the given problem
step 3
Identify the solution when
so
using a graphing tool
The solution is the interval -----> [3,5]
see the attached figure
All real numbers greater than or equal to 3 and less than or equal to 5
therefore
The first step in which the student made an error is step 3
