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25 votes
25 votes
valuate the expression when x = 10. Show your work, and explain each step you take 5x = 152.Evaluate the expression when b = 5 and h = 6. Show your work and explain each step you take 1/2b*h

User Laura Calinoiu
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1 Answer

22 votes
22 votes

In the first part, we have the followed expression:


5x\text{ - 15}

Wants to know the value of it when x=10, so we just need to substitute the value in the expression, wich gives us:


5*(10)\text{ - 15, wich give us the expression: 50 - 15 = 35}

In the second part, we have the expression:


(1)/(2)b* h

And we want to know the value of it when b=5 and h=6, so lets substitute those values in our expression:


(1)/(2)(5)*(6),\text{ wich gives us, }(1)/(2)30\text{ = }(30)/(2)\text{ = 15}

User Imrok
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3.1k points
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