Answer:
tysm!
Step-by-step explanation:
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Answer:
10.7
Step-by-step explanation:
You set up the proportion like this:
When you solve for x you get
x=10.7 rounded to the nearest tenth
Answer:
Step-by-step explanation:
small=s, s=3.99
large=l, l=19.20
10s+8l=192.20
20s+l=99
we can see that in the second equation, 20s+l=99
l=99-20s
lets replace l in the first equation
10s+8(99-20s)=192.20
10s+792-160s=192.20
-150s=-792+192.20
150s=599.80
s=3.99
l=99-20(3.99)=99-79.80=19.20
Answer:
Step-by-step explanation:
A linear equation with two variables may appear in the form of Ax + By = C, and the resulting graph is always a straight line. The equation is more often in the form of y = mx+b, where m is the slope of the line of the corresponding figure and b is its Y-axis intercept, that is, the point where the line meets the Y-axis.
For example, 4x + 2y = 8 is a linear equation because it fits the desired structure. But for graphical and most other purposes, we often write this as y = - 2x + 4.
In this unit, on the basis of this linear equation, the equal sign is changed to the greater than a sign or less than sign, which is a new challenge in the operation of symbols.
Answer:
The statement 
is a tautology.
Step-by-step explanation:
We have the following statement
A truth table shows how the truth or falsity of a compound statement depends on the truth or falsity of the simple statements from which it's constructed.
The simple statements from the statement given are:
, 
, 
, 
, and 
with these you can construct the following truth table.
A tautology is a formula that is always true, it is true for every assignment of truth values to its simple components.
The last column contains only true values. Therefore, the statement is a tautology.
