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svp [43]
3 years ago
10

Kevin and Randy have a jar containing 49 coins, all of which are either quarters or nickels. The total value of coins in the jar

is $8.05. How many of each type of coin do they have?
Mathematics
2 answers:
antoniya [11.8K]3 years ago
3 0
48 quarters and 1 nickle
Ymorist [56]3 years ago
3 0
It is possible that they can have 24 quarters and one nickel


hoped I helped :)
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(05.02 MC)
Anon25 [30]

Option C:

It is  \frac{1}{3} throughout the line.

Solution:

Point on the larger shaded triangle are (0, 0) and (–6, –2).  

Point on the smaller shaded triangle are (–6, –2) and (–9, –3).

Slope of the line:

 $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Slope of the larger triangle:

Here,  x_{1}=0, y_{1}=0, x_{2}=-6, y_{2}=-2

 $m=\frac{-2-0}{-6-0}

 $m=\frac{-2}{-6}

 $m=\frac{1}{3}  

Slope of the smaller triangle:

Here,  x_{1}=-6, y_{1}=-2, x_{2}=-9, y_{2}=-3

 $m=\frac{-3-(-2)}{-9-(-6)}

 $m=\frac{-3+2}{-9+6}

 $m=\frac{-1}{-3}

 $m=\frac{1}{3}

Both slopes are equal.

It is  \frac{1}{3} throughout the line.

Hence option B is the correct answer.

8 0
3 years ago
You decide to take three part-time jobs: Work at a convenience store 60% of your time, and earn $11.00 an hour. Referee games at
ira [324]

Answer:

$17.90 rounded up to 2dp

Step-by-step explanation:

11 = 60%  

19 = 25%

16 = 15%

Total  3 hrs = $46 where average is 46/3 = 15.33 when same percentage of hours. For 10% higher which is 25%  we take  19 x 0.10 = 1.533 and subtract  = $17.47 for 25% - 40% of time in employment, but for 50% we find the average taking 11 x 0.45 = 6.8985 and add = $ 11 + 6.8985 = 17.8985 = $17.90

3 0
3 years ago
The 1990s and early 2000s could be considered the steroids era in a certain professional baseball​ league, as many players have
serg [7]

Answer:

Step-by-step explanation:

This could be an observational study because an experiment was not carried out by the research to further verify this hypothesis. Individuals are observed and data is collected from such observation. No effort is made by the researcher to affect the outcome of such results.

This study alone is not enough to conclude about a cause and effect relationship between steroids and the increase in home​ runs as thus study is not randomized and cant control other factors or links bringing about this result.

4 0
3 years ago
Judy can decorate 3 cakes in 5 hours. Which graph represents this same rate?
mojhsa [17]

Answer:

The first one with the pink background

Step-by-step explanation:

It's the only one that matches perfectly

3 0
3 years ago
Read 2 more answers
Determine if the two triangle are congruent. If they are, state how?​
Murrr4er [49]

Answer:

The triangles are congruent by SAS.

Step-by-step explanation:

The triangle have two congruent sides because it is given. The congruent angle is the angle at which they connect, these two angles are congruent because they are vertical angles.

5 0
2 years ago
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