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777dan777 [17]
3 years ago
14

Define what an Algebraic expression is.

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
6 0

Answer:

A expression that contains at least one variable.

Step-by-step explanation:

slavikrds [6]3 years ago
4 0

Answer:

a symbol or a combination of symbols used in algebra, containing one or more numbers, variables, and arithmetic operations:

Step-by-step explanation:

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How many and what type of solutions does the equation have?<br> 5y2 = 187 – 4
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Answer:

Two solutions.

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3 years ago
There are books in a library, there are 4 different kinds of books. Science books make up 3/4 of art books. Comic books are 1/4
Sergeeva-Olga [200]

Answer:

The total number of books is 1020.

Step-by-step explanation:

Denote the books by their first letter.

From the provided information:

  • S=\frac{3}{4}A
  • C=\frac{1}{4}T
  • H=\frac{1}{5}T
  • H = A-80

Compute the expression of <em>T</em> as follows:

H = A-80\\\\\frac{1}{5}T=A-80\\\\T=5A-400...(i)

Compute the value of <em>C</em> in terms of <em>A</em>:

C=\frac{1}{4}T\\\\C=\frac{1}{4}\times {5A-400}\\\\C=\frac{5}{4}A-100...(ii)

Compute the value of <em>A</em> as follows:

Use expressions (i) and (ii):

T=S+C+H+A\\\\5A-400=\frac{3}{4}A+\frac{5}{4}A-100+A-80+A\\\\5A-400=4A-180\\\\A=220

Compute the value of <em>T</em> as follows:

T=5A-80\\\\T=(5\times 220)-80\\\\T=1100-80\\\\T=1020

Thus, the total number of books is 1020.

4 0
3 years ago
Raina has bought 36 pounds of dog food. She feeds her dog 3/4 pounds for each meal. For how many meals will the food last?
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Answer:

Answer:

27 days

Step-by-step explanation:

It is a simple division question

18 / (2/3)

Multiply by reciprocal

18 * 3 / 2 = 27

Step-by-step explanation:

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