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Salsk061 [2.6K]
1 year ago
6

Vicki has 210 baseball cards and buys an additional 15 cards every week. Jeb has 275 baseball cards and buys an additional 10 ca

rds every week. After how many weeks will Vicki and Jeb have the same number of baseball cards?
Mathematics
2 answers:
Hitman42 [59]1 year ago
5 0

Answer:

11 weeks

Step-by-step explanation:


nata0808 [166]1 year ago
3 0

Answer:

13 weeks

Step-by-step explanation:

X = number of weeks

Vicki = 210 + 15(x)

Jet = 275 + 10(x)

210 + 15(x) = 275 + 10(x)

Find like terms

5x=65

Isolate the variable

<u>5x</u> = <u>65</u>

5      5          65 divide by 5= 13

*If you need to check substitute 13 for x in the equation and see if it is correct*

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In a data set with a range of 55.4 to 105.4 and 400 observations, there are 176 observations with values less than 86. Find the
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<u>ANSWER: </u>

In a data set with a range of 55.4 to 105.4 and 400 observations.86 lies in the 49th percentile.

<u>SOLUTION: </u>

Given, in a data set with a range of 55.4 to 105.4 and 400 observations.

There are 176 observations below the value of 86, and we need to find the percentile for 86.

We know that, percentile formula = \frac{\text {number of observations below the required number}}{\text {total number of observations}} \times 100

Percentile of 86 = \frac{176}{400} \times 100

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So, percentile of 86 = 49

Hence, 86 lies in the 49th percentile.  

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2 years ago
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