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Mariulka [41]
3 years ago
8

Name the variable in each expression. a+8

Mathematics
1 answer:
Alex3 years ago
6 0
Your varible is A depends what the teacher ask if not just A it will be 8a
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The temperature inside a certain industrial machine at time t seconds after startup, for 0 &lt; t &lt; 10, is given by h(t) = 42
frutty [35]

Answer:

t= \frac{125}{38} s

Step-by-step explanation:

We are given the temperature inside the machine from startup until 10 seconds later, the formula is:

h(t)= 42 \cdot t +1 - 4\cdot t +2  (degrees \, C)

We want to know at what time t the temperature inside the machine will be equal to 128 °C.

So we set:

h(t)=128

42\cdot t+1-4\cdot t+2=128

Now, we rearrange the equation to keep terms with t on the left hand side and terms without t on the right hand side

42\cdot t-4\cdot t=128-1-2

and we simplify:

(42-4)\cdot t= 128-2-1= 125

38 \cdot t = 125

now it's easy to solve for t:

t=\frac{125}{38}

And thus we arrive to the solution.

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3 years ago
It cost a farmer 43.60 pre acre to harvest corn. How much does it cost to harvest 1325.5 acres
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The answer is: 57791.8

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You can find the answer by doing: 43.60 x 1325.5 = 57791.8.

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