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3 years ago

Here is a list of questions about the students and teachers at a school. Select the questions that are statistical questions.

Mathematics

1 answer:

Gwar [14]3 years ago

4 0

Answer: 1. 2. 4. 5. 6.

Step-by-step explanation:

Im pretty sure these are because you have to collect data.

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Make b the subject a= 1/4 b

dalvyx [7]

Answer:

b = 4a

Step-by-step explanation:

$a = \frac{b}{4}$

$b = 4a$

changing sides changes sign division to multiplication.

3 0

2 years ago

Read 2 more answers

On a map, 9 cm represents 15 miles. If the distance between two cities on the map is 15 cm, how many miles separate the cities?

torisob [31]

Answer:

15 cm on the map is equal to 25 miles.

Step-by-step explanation:

Given that,

On a map, 9 cm represents 15 miles.

The distance between two cities is 15 cm. We need to find the distance in miles.

9 cm = 15 miles

$1\ cm=\dfrac{15}{9}\ \miles$

So, 15 cm is equal to,

$15\ cm=\dfrac{15}{9}\times 15\ miles\\\\=25\ miles$

So, 15 cm on the map is equal to 25 miles.

4 0

3 years ago

How to solve this question? Show steps pls :)

Svetlanka [38]

Answer:

Bro if u don't know the ques then ask ur mom or dad kid

4 0

3 years ago

A man buys a certain number of Litchies at 20 per rupee and equal number at 30 per rupee. He

ANTONII [103]

Full question :

A man buys a certain number of oranges at 20 for Rs. 60 and an equal number at 30 for Rs. 60. He mixes them and sells them at 25 for Rs. 60. What is the gain or loss percent?

Answer:

4% loss(percentage loss on cost price)

Step-by-step explanation:

we will be employing algebra in solving this problem :

20 oranges at 60 Rs=60Rs/20 per orange=3Rs per orange

Say x oranges bought at 3Rs per orange=3Rsx

Equal number of oranges at 30 oranges for 60 Rs=60Rs/30 per orange=2Rs per orange

Say x oranges bought at 3Rs per orange=2Rsx

Total Cost Price = 3Rsx + 2Rsx = 5Rsx

He then sells all oranges at 25 for 60 Rs

Therefore price per orange=60/25=12/5Rs

since he sold x+x oranges(from the above calculations)

Total selling price=total oranges *12/5Rs=2x oranges*12/5Rs=24x/5Rs

Profit or loss=24x/5-5x=-x/5

therefore we have a loss =-x/5

Percentage of loss(on cost price)

=x/5÷5x∗100=

=1/25∗100=4%

5 0

3 years ago

9 out of 20 students will attend the Worldwide Day of Play at RMS what percentage of students will not attend

EastWind [94]

U do 4/20 = p/100 then u cross multiply the 4 with 100 getting u 400, then divide the 400 by 20, giving u the answer of 20%

8 0

3 years ago

Read 2 more answers