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nlexa [21]
3 years ago
6

Bethany has 3.10$ in nickels and dimes. She has a total of 44 coins . What is the value of the nickels Bethany has

Mathematics
2 answers:
Neko [114]3 years ago
8 0

Answer:this fool

Step-by-step explanation:$1.30 is the answer

vlada-n [284]3 years ago
5 0
Represent the unknows with n and d.

Then n+d = 44 (# of coins)

and 

$0.05n + $0.10d = $3.10   (value of coins)

Solving the first equation for n, we get n = 44-d.  Subst.  44-d for n in the 2nd equation:

0.05(44-d) + 0.10d = 3.10
Then 2.20 - 0.05d + 0.10d = 3.10, or
          2.20 + 0.05d             = 3.10, or    0.05d = 0.90.  Solving for d, 
       0.90
d = -------- = 18
        0.05

There are 18 dimes and 44-18 nickels.  How many nickels is that?  ;)

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*Silly and/or spam answers will not be tolerated*
stepladder [879]

Answer:

-1/8

Step-by-step explanation:

lim x approaches -6     (sqrt( 10-x) -4) / (x+6)

Rationalize

   (sqrt( 10-x) -4)      (sqrt( 10-x) +4)

    ------------------- * -------------------

       (x+6)                 (sqrt( 10-x) +4)

We know ( a-b) (a+b) = a^2 -b^2

a= ( sqrt(10-x)   b = 4    

(10-x) -16

-------------------

(x+6) (sqrt( 10-x) +4)    

-6-x

-------------------

(x+6) (sqrt( 10-x) +4)

Factor out -1 from the numerator

-1( x+6)

-------------------

(x+6) (sqrt( 10-x) +4)

Cancel x+6 from the numerator and denominator

-1

-------------------

(sqrt( 10-x) +4)

Now take the limit

lim x approaches -6    -1/ (sqrt( 10-x) +4)

                                      -1/ (sqrt( 10- -6) +4)

                                      -1/ (sqrt(16) +4)

                                      -1 /( 4+4)

                                        -1/8

5 0
3 years ago
Read 2 more answers
Please answer tomorrow is my exam please​
Illusion [34]

Answer:

i dont know sorry.

Step-by-step explanation:

Do it yourself ;)

4 0
3 years ago
Use fractions to solve this 5/10=1 /
strojnjashka [21]

Answer:

1/2

Step-by-step explanation:

5/10 = 0.5

0.5 = 4/8 = 3/6 = 2/4 = 1/2.

Whenever you see a fraction where the denominator is exactly twice as big as the numerator, you know that it equals 0.5 or the other fractions that equal 0.5

8 0
3 years ago
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marissa [1.9K]
The answer is 188 altogether 
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3 years ago
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Which of the following statements about using a protractor are correct?
DedPeter [7]
The protractor measures angles that open from left or from the right

3 0
3 years ago
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