Ask question

Ask question

All categories

3 years ago

5

Someone help me with number 7 please!!

1 answer:

andriy [413]3 years ago

6 0

P is inversely proportional to V
That is P = k/V where k is some constant.
Plug in the given values for P and V:-

25 = k/400 giving k = 10,000

so the relation is P = 10,000 / V

when V = 200 , 200P = 10,000

Its A

You might be interested in

Sarah invested $2,500 in an account paying an interest rate of 2.1% compounded continuously. Assuming no deposits or withdrawals

marysya [2.9K]

Answer:

sorry 2458946547165874%

Step-by-step explanation:

3 0

3 years ago

Can you help me please

nasty-shy [4]

Answer:

Add 39499 plus 3499

Step-by-step explanation:

and get it

6 0

3 years ago

Read 2 more answers

Can someone pls help

Arisa [49]

c because it just makes sense

3 0

3 years ago

Read 2 more answers

The table shows the heights of 40 students in a class.

My name is Ann [436]

Answer:

see below

Step-by-step explanation:

There are 7 students between 120 and 124 so take the median of 122

Multiply the number of students by the median

7 * 122 =854

There are 8 students between 124 and 128 so take the median of 126

Multiply the number of students by the median

8 * 126 =1008

There are 13 students between 128 and 132 so take the median of 130

Multiply the number of students by the median

13 * 130 =1690

There are 9 students between 132 and 136 so take the median of 134

Multiply the number of students by the median

9 * 134=1206

There are 3 students between 136 and 140 so take the median of 138

Multiply the number of students by the median

3 * 138 =414

To find the mean, take the total weight and divide by the number of students

(854+1008+1690+1206+414) = 5172 lbs

7+8+13+9+3 = 40 students

5172/40 =129.3 lbs for the average

This is an estimate because we do not know that the number of students in each category will weight the median on average. We use the mean as an estimate of their weight. The median is the middle number of the category.

6 0

3 years ago

Ani spent a total of $7.53 at a store. She bought some cereal for $3.67. She also bought 6 peaches.

Ratling [72]

Answer:

D

Step-by-step explanation:

It says she spent $7.53 at the store and she bought (SOME) cereal for $3.67

so we have to find how much the 6 peaches cost. To find it out we are going to have to subtract the cereal she bought from $3.67 and the money she wasted total so its going to be D.

8 0

3 years ago