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Delvig [45]
3 years ago
14

One-third of the students in Mrs. Hayko's class walk to school. Of the students who do not walk to school, four-fifths take the

bus.
What fraction of the students in Mrs. Hayko's class take the bus to school?

How many students might be there in her class.
Mathematics
1 answer:
marysya [2.9K]3 years ago
7 0

1/3  of the students walks

1 -1/3 = 2/3   so 2/3 of the students do not walk

of the student who do not walk 4/5 take the bus

2/3 * 4/5 = 8/15  

8/15 of her students take the bus

There must be at least 15 student

We only want whole numbers of students, so they must be in multiples of 15

15,30,45,60 etc

Mrs H has either 15 or 30 students.  Higher multiples would be too many students in the class

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Ill give brainliest for the answer and no guessing
Vsevolod [243]

Answer:

12350%

Step-by-step explanation:

. 76 - 34 = 42

. 42 divided by 34 = 1.23529411765

. 1.23529411765 multiplied by 100 = 123.529411765

. 123.529411765 ≈ 123.5 * 100 = 12350%

7 0
2 years ago
Can someone please help me With BOTH parts of the question ..thanks u
Gala2k [10]

Answer:

-0.89 < -0.51

B. Felipe's Restaurant has less value than Ming's Lodge.

Step-by-step explanation:

If you have a big debt you're going to have less money.

3 0
2 years ago
. Using the Binomial Theorem explicitly, give the 15th term in the expansion of (-2x + 1)^19
timofeeve [1]
Let's rewrite the binomial as:
(1 - 2x)^{19}

\text{Binomial expansion:} (1 + x)^{n} = \sum_{r = 0}^n\left(\begin{array}{ccc}n\\r\end{array}\right) (x)^{r}

Using the binomial expansion, we get:
\text{Binomial expansion: } (1 - 2x)^{19} = \sum_{r = 0}^{19}\left(\begin{array}{ccc}19\\r\end{array}\right) (-2x)^{r}

For the 15th term, we want the term where r is equal to 14, because of the fact that the first term starts when r = 0. Thus, for the 15th term, we need to include the 0th or the first term of the binomial expansion.

Thus, the fifteenth term is:
\text{Binomial expansion (15th term):} \left(\begin{array}{ccc}19\\14\end{array}\right) (-2x)^{14}
3 0
3 years ago
PLEASE HELP,I WIL GIVE BRAINLIEST.
stiks02 [169]

Answer:

70 ft

Step-by-step explanation:

300/20 = 15

20x2=40

15x2=30

40+30=70

8 0
2 years ago
Read 2 more answers
There are 750 students in the 7th grade and 625 8th grade students at memorial middle school. What percent is the 7th grade clas
netineya [11]
120%
Take 750 divided by 625. That equals 1.2, then multiply 1.2 times 100 to reach the final answer of 120%
8 0
3 years ago
Read 2 more answers
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