Evaluate the expression 3X plus Z plus 2Y -12 if X equals 3Y equals eight and Z equals five
1 answer:
Hey there!
3x + z + 2y - 12
We know this information:
x = 3
y = 8
z = 5
With this information, we’ll just “fill in the blanks” (aka the parts with the exponents)
So, the expression would look like this:
(3 * 3) + 5 + (2 * 8) - 12
Now, we solve (see photo)
Therefore, the answer is 18
Hope this helps you!
God bless ❤️
xXxGolferGirlxXx
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Answer:
500 pounds
Step-by-step explanation:
Let the pressure applied to the leverage bar be represented by p
Let the distance from the object be represented by d.
The pressure applied to a leverage bar varies inversely as the distance from the object.
Written mathematically, we have:
Introducing the constant of proportionality
If 150 pounds is required for a distance of 10 inches from the object
- p=150 pounds
- d=10 inches
Therefore, the relationship between p and d is:
When d=3 Inches
The pressure applied when the distance is 3 inches is 500 pounds.