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3 years ago

A soccer league has 30 seventh-graders and 15 eighth-graders. Write the ratio of seventh-graders to eight graders.

Mathematics

2 answers:

nirvana33 [79]3 years ago

8 0

The ratio not simplified would be 15:30, but simplified it would be 1:2. Hope it helps!

9966 [12]3 years ago

7 0

Answer:

2:1

Step-by-step explanation:

30/15=2/1

2:1 is the answer you are looking for

Hope it helped

Please mark me as Brainliest

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What is the first quartile of this data set? 11, 12, 15, 16, 17, 19, 22, 24, 29, 33, 38

Bas_tet [7]

Answer:

Answer:

first quartile of this data set is 13

Step-by-step explanation:

11, 12, 13, 15, 17, 19, 22, 24, 29, 33, 38

First we find the median for the given set of numbers

Median is the middle number

11, 12, 13, 15, 17, 19, 22, 24, 29, 33, 38

19 is the median of the set of numbers

First quartile is the median of the set of numbers below 19

third quartile is the median of the set of number above 19

11, 12, 13, 15, 17

Median of 11, 12, 13, 15, 17 is 13

So first quartile of this data set is 13

Read more on Brainly.com - brainly.com/question/10309251#readmore

Step-by-step explanation:

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3 years ago

P^-4q^3r^-7 over p^-2q^3p^-2 simplify

kondaur [170]

Answer:

$\large\boxed{r^{-7}=\dfrac{1}{r^7}}$

Step-by-step explanation:

$\dfrac{p^{-4}q^3r^{-7}}{p^{-2}q^3p^{-2}}\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=p^{-4-(-2)-(-2)}q^{3-3}r^{-7}\\\\=p^{-4+2+2}q^0r^{-7}\\\\=p^0q^0r^{-7}\\\\=r^{-7}\qquad\text{use}\ a^{-n}=\dfrac{1}{a^n}\\\\=\dfrac{1}{r^7}$

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2 years ago

Read 2 more answers

3 1/2+ 5 3/8 can you solve please

Sunny_sXe [5.5K]

Answer:

71/8

8.875

8 7/8

Step-by-step explanation:

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3 years ago

Ali, Ben, and Cliff plant seedlings in their neighborhood park. Ali plants 40% of the total number of seedlings, Ben plants 45%

Juli2301 [7.4K]

Answer:

580 seedlings altogether.

Step-by-step explanation:

Given that,

Ali plants 40% of the total number of seedlings, Ben plants 45% of the total number of seedlings, and Cliff plants the rest of the seedlings. Cliff plants 87 seedlings.

The percentage of the seedling planted by Cliff = 100% - 45% - 40% = 15%

Let x = the total number of seedlings

$15\%\ of\ x=87\\\\x=\dfrac{87\times 100}{15}\\\\x=580$