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Lina20 [59]
2 years ago
6

How many terms are there in each expression? a. 9x − 4y + 7z − 8w + t b. Ab + 3a − 4b c. 25a + 9bc − 8def

Mathematics
2 answers:
Reptile [31]2 years ago
8 0

Answer:

a. 5

b. 3

c. 3

Step-by-step explanation:

Terms are variables, the number connected to the term is called the coefficient, the variable does not need a coefficient to be considered a term. There are 5 terms in a (9x,4y,7x,8w,t) 3 terms in b (Ab,3a,4b) and 3 terms in c (25a,9bc,8def).

Notice how there are multiple variables in sets b and c. Do not get confused into thinking these are multiple terms, they are one. A term is a single expression with one or more variables that are multiplied but never added or subtracted. Ex: abc is one term but 3 variables.

Vinvika [58]2 years ago
7 0
ANSWER:
A. 5
B. 3
C. 3
Hope it helps
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The sum of two numbers is 47 and the difference is 25 . what are the numbers?
taurus [48]
The numbers are:  36 and 11 .
______________________________________________
Explanation:
______________________________________________
Let us represent the TWO (2) numbers with the variables;
         "x" and "y" .
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     x + y = 47 .

     y − x = 25.
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Since:  " y − x = 25 " ;

Solve for "y" in terms of "x" ;

  y − x = 25  ;

Add "x" to each side of the equation:
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   y − x + x  = 25 + x  ;

to get:

   y = 25 + x .

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Subtract "25" from each side of the equation:

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2x  = 22  ;

Divide EACH SIDE of the equation by "2" ;
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    x = 11 ;
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x + y = 47<span> ;

</span>Plug in "11" for "x" into the equation ; to solve for "y" ;

11 + y = 47 ;

Subtract "11" from EACH SIDE of the equation;
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 11 + y − 11 =  47 − 11  ;

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So:  x = 11 , y = 36 ;
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 Let us check our work:

y − x = 25 ;

36 − 11 =? 25 ?  Yes!

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The numbers are:  36 and 11 .
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3 years ago
After Ken Dial had his "‘aha’ moment" (line 41), he
galina1969 [7]

The correct option is c. how the birds dealt with gradually steeper inclines.

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<h3>Who was Ken Dial?</h3>

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To know more about land conservation, here

brainly.com/question/9384173

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