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Sphinxa [80]
3 years ago
5

Which of these statements about algebra are true?

Mathematics
2 answers:
9966 [12]3 years ago
8 0

Answer:

  1. Algebra uses abstract symbols to represent concrete elements in the real world.
  2. Many great mathematicians were also philosophers.
  3. The same variable can represent two different unknowns in two different algebraic expressions.

Step-by-step explanation:

Novay_Z [31]3 years ago
6 0

Yes, algebra uses abstract symbols to represent concrete elements in the real world.

No, in an algebraic equation, the same variable cannot represent two different unknowns.

Yes, many great mathematicians were also philosophers.

No, An algebraic expression doesn't contains an equal sign, but an algebraic equation does.

No, if the expressions are in the same set. Yes, if they are not. (The same variable can represent two different unknowns in two different algebraic expressions.)

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At the city museum, child admission is $5.20 and adult admission is $9.50. On Friday,133 tickets were sold for a total sales of
fredd [130]

Answer:

55 adult tickets were sold on Friday.

Step-by-step explanation:

A linear system will be used to model the system.

Let c be the number of child tickets and a be the number of adult tickets

Then according to given statements

a+c = 133\ \ \ \ Eqn\ 1\\9.50a+5.20c = 928.10\ \ \ Eqn\ 2

From equation 1

a = 133-c

Putting this in equation 2

9.50(133-c)+5.20c = 928.10\\1263.5-9.50c+5.20c=928.10\\1263.5-4.3c = 928.10\\-4.3c = 928.10-1263.5\\-4.3c=-335.4\\\frac{-4.3c}{-4.3} = \frac{-335.4}{-4.3}\\c = 78

Putting c = 78 in equation 1

a+78 = 133\\a = 133-78\\a = 55

Hence,

55 adult tickets were sold on Friday.

4 0
3 years ago
A rectangle has an area of 24 cm. Function f gives the length of the rectangle, in centimeters,
zheka24 [161]

Answer:

do you have a picture of the problem as well?

Step-by-step explanation:

3 0
3 years ago
Could you guys please help me with this
Illusion [34]
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5 0
3 years ago
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andrew-mc [135]

Answer:

<h2>\frac{1}{2}</h2>

Solution,

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B(2,4)---------->( x2, y2)

Now,

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\frac{y2 - y1}{x2 - x1}

\frac{4 - 1}{2 - ( - 4)}

\frac{3}{2 + 4}

\frac{3}{6}

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Hope this helps...

Good luck on your assignment...

3 0
3 years ago
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$2.50 per square foot. how much is that per square yard?
horrorfan [7]
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