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Anna11 [10]
3 years ago
13

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Mathematics
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

10 ways

Step-by-step explanation:


You might be interested in
A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level
cupoosta [38]

Answer:

The sample required is  n = 135

Step-by-step explanation:

From the question we are told that

     The  standard deviation is  \sigma = 9

      The margin of error is E =  2

     

Given that the confidence level is  99%  then the level of  significance is mathematically evaluated as

         \alpha =  100-99

        \alpha =  1 \%

        \alpha =  0.01

Next we will obtain the critical value  \frac{\alpha }{2} from the normal distribution table(reference  math dot armstrong dot edu) , the value is  

             Z_{\frac{\alpha }{2} } =  Z_{\frac{0.05 }{2} } =  2.58

The  sample size is mathematically represented as

          n = [ \frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ]^2

substituting values

           n = [ \frac{ 2.58 *  9 }{2} ]^2

            n = 135

3 0
3 years ago
-7(a - 3) = 11 - 7a<br> what’s the answer
natali 33 [55]

Answer:

the statement is false there is no solution

Step-by-step explanation:

step 1       -7(a-3)=11-7a

step 2      -7a+21=11-7a

step 3      cancel out the -7a's

step 4       you are left with 21=11 which does not work so it is false

8 0
3 years ago
Please help me with my problem
Doss [256]
D and F are not equivalent to ax+bx+ac+bc+
8 0
3 years ago
Work out the value of 2x2 x-1=2
Otrada [13]

Answer:

rong answer is 18

I think the right answer is 0.75

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Next Question!
rodikova [14]

Answer:

1/6≈0.17≈17%

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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