Answer:
![30](https://tex.z-dn.net/?f=30)
Step-by-step explanation:
Given expression:
![5(x + 4) + 5(2 - x)](https://tex.z-dn.net/?f=5%28x%20%2B%204%29%20%2B%205%282%20-%20x%29)
Note: <em>The value of "x" is undefined because the given sum is not an equation. Thus, I will simplify the expression as much as possible. </em>
Let us simplify all the distributive properties stated in the expression.
Apply the distributive property rule <u>[a(b + c) = ab + ac]</u>
![\implies5(x) + 5(4) + 5(2) - 5(x)](https://tex.z-dn.net/?f=%5Cimplies5%28x%29%20%2B%205%284%29%20%2B%205%282%29%20-%205%28x%29)
Since 5(x) is being subtracted from 5(x), we get:
![\implies 5(x) + 5(4) + 5(2) - 5(x)](https://tex.z-dn.net/?f=%5Cimplies%205%28x%29%20%2B%205%284%29%20%2B%205%282%29%20-%205%28x%29)
![\implies 5(4) + 5(2)](https://tex.z-dn.net/?f=%5Cimplies%205%284%29%20%2B%205%282%29)
Finally, let us simplify the sum of the product of (5 and 4) and (5 and 2).
![\implies20 + 10](https://tex.z-dn.net/?f=%5Cimplies20%20%2B%2010)
![\implies \boxed{30}](https://tex.z-dn.net/?f=%5Cimplies%20%5Cboxed%7B30%7D)
Learn more about one-variable expressions: brainly.com/question/15139917
Answer:
4
Step-by-step explanation:
Step-by-step explanation:
a) unsuitable - the precision should have been about 0.030 kg (about an ounce)
b) unsuitable - the stopwatch should have a precision of 0.001 s
c) just about right, although I wouldn't mind it if its precision is of 0.05 mm
d) unsuitable - color matching requires much finer control so I would go with 1/8 cup precision.