What is 00000000000004. In scientific notation

The average of 10 numbers is −10. If the sum of 6 of them is 100, what is the average of the other 4? 20pts

Allushta [10]

Answer:

The sum of the other 4 numbers is $-200$

Step-by-step explanation:

Let

x------> the sum of 6 numbers

y-----> the sum of the other 4 numbers

we know that

$\frac{x+y}{10}=-10$ -----> equation A

$x=100$

substitute the value of x in the equation A

$\frac{100+y}{10}=-10$

$\frac{100}{10}+\frac{y}{10}=-10$

$10+\frac{y}{10}=-10$

$\frac{y}{10}=-10-10$

$\frac{y}{10}=-20$

$y=-20*10=-200$

5 0

3 years ago

Read 2 more answers

A pump fills a pool at the rate of 20 cubic meters in an hour. If each cubic meter of water costs $10, how many minutes will the

fomenos

The first thing any good mathematician does is convert the measurements to the same unit as what the question is asking. In this problem, it states that the pool fills at a rate of 20 cubic meters per hour. Just keep in mind that an hour is 60 minutes.

The next step is to see how many cubic meters will cost $300. This can be done by dividing 300 by 10. This gets you 30 cubic meters of water.

You already know that 60 minutes is 20 cubic meters of water. That leaves the remaining 10 cubic meters of water. By dividing the rate given, you get that 30 minutes is 10 cubic meters of water. Add the 60 and 30 together to get 90 minutes.

It will take 90 minutes for the pump to use $300.

7 0

3 years ago

the population of a city has decreased by 36% since it was last measured. if the current population is 17600 what was the previo

Savatey [412]

Answer:

23,936

Step-by-step explanation:

so get your 17600 times it by 0.36 which gets you 6,336 then add that to 17,600 =23,936

That's how you get your answer

5 0

3 years ago