Answer: 2495
Step-by-step explanation:
9x + 7(325)-7x = 2495
2x = 220
x = 110 adults and 215 senior citizens
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$990 + $1505 = $2495
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Answer:
98.9
Step-by-step explanation:
115 - 20% = 92
92 + 7.5% = 98.9
Answer:
8+3x
Step-by-step explanation:
To simplify this equation, we can use PEMDAS, or the order of operations.
1. <u>Parenthesis</u>
2. <u>Exponents</u>
3. <u>Multiplication>Division (Depends on who comes first left to right)</u>
4. <u>Addition>Subtraction(Same as multiplication>Division)</u>
Now, we just need to solve the equation.
First, solve the <u>parenthesis</u>.
We can use the distributive property, since there is a subtraction symbol before the parenthesis, we can multiply both numbers by -1.
Now our equation is 5-x+3+4x
Next, use the commutative property to add together all the seperated common terms.
Now our equation is 8+3x, since we added 3 to 5 and 4x to -x.
Hope this helps!
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The correct answers are B and D.
A is false because, even though it's true that 4 points are not necessarily on the same line, it is not required that they are collinear in order for them to be coplanar.
B is true: two points always lie on the same line (and thus also in infinite same planes), but four points are not always coplanar
C is false. As a counterexample pick the four points (0,0, 0), (1, 0, 0), (0, 1, 0), (0, 0, 1).
D is true: two points are always on the same line, three points always lie in a common plane, but 4 points are not necessarily coplanar.
