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S_A_V [24]
1 year ago
12

Mr. Parker spent $96.30 on 3 hats and 6 key chains. if each hat cost $15.50 how much did each key chain cost?

Mathematics
1 answer:
Vladimir [108]1 year ago
6 0

1) Given that Mr. Parker spent that we can write

3h +6k = 96.30

h=15.5

2) So now let's solve system system

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beks73 [17]

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Degger [83]

the correct Answer is:

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3 0
3 years ago
ANSWER MY QUESTION OR ILL SEND BALDI AFTER YOU!!
mihalych1998 [28]

Your answers are:

  1. b
  2. d
  3. a
  4. b
  5. c
  6. a
  7. c
  8. Factor out 10 from the expression so you end up wtth 10(2k + 5)
  9. 10h + 6 - 5h + 3 --> 10h - 5h = 5h ~ 6 + 3 = 9 --> 5h + 9
6 0
3 years ago
Read 2 more answers
Eight people audition for a choir. The choir director must choose one soprano, one altar and one soprano. In how many ways can t
Trava [24]
There are 72 different ways the director can fill the positions.

(1+2+3+4+5+6+7+8) x 2


You multiply it by 2 because there are going to be 4 other people who will not have a position, and 8/4 is 2.
4 0
3 years ago
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How do I solve this STATS question?
k0ka [10]
We have the following data:

Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6

We need to find the confidence level. For this first we need to find the z value.

The margin of error for a population proportion is given as:

E=z* \sqrt{ \frac{p(1-p)}{n} }

Using the values, we get:

0.027=z* \sqrt{ \frac{0.6*0.4}{900} } \\  \\ 
0.027=z*0.016 \\  \\ 
z= \frac{0.027}{0.01633}  \\  \\ 
z=1.65

As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B
7 0
3 years ago
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