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Setler [38]
3 years ago
8

Solve the following system of equations

Mathematics
1 answer:
marishachu [46]3 years ago
7 0

Answer: D) Not possible to solve

couse we don't know the meaning of 2x + 4y + 10z

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People with bmi less than 18.5 are often classified as underweight. What percent of men aged 20-29 are underweight by this crite
Archy [21]
You need more information.  If you had the bmi's of every man between 20 and 29 you could get an exact answer.  If you had a good sample you could get a good estimate of this answer.
3 0
3 years ago
Angela works 18 hours a week for 12 weeks in the summer at the local swimming pool as a life guard. She earns $13 per hour. Her
Musya8 [376]
The whole 12 weeks she will make $2,172.

Her employer takes $421.2 for federal income tax.
Her employer takes $174.1 for Social Security.
Her employer takes $40.7 for Medicare.

She makes $181 a week.
6 0
3 years ago
If the x is the number, how would you represent 9 more than the number
Roman55 [17]

Answer:

x = x+9

Step-by-step explanation:

well that is the only way you can do it as we do not know about what x is. also, if you meant by x + (x*9), you can represent that as x*10

8 0
3 years ago
A cylindrical swimming pool has a diameter of 20 feet and a height of 3.5 feet. How many gallons of water can the pool contain?
kvasek [131]

Answer:

The swimming pool will contain approx 8243\ gal of water.

Step-by-step explanation:

Given the swimming pool is in a cylindrical shape.

And the dimensions are 20\ feet diameter with a height of 3.5\ feet.

Also, 1\ ft^3 =7.5\ gal

First, we will find the volume of the swimming pool.

The swimming pool is in cylindrical shape.

So, the volume would be \pi r^2h

The height (h) is given as 3.5\ feet. To calculate radius (r) we will divide the diameter by two.

The radius of the cylinder would be \frac{20}{2}=10\ feet

Plug these values in the formula we get,

\pi r^2h\\=\pi\times 10^2\times 3.5\\=3.14\times 100\times 3.5\\=1099\ ft^3

Now, it is given 1\ ft^3 =7.5\ gal

So, 1099\ ft^3 =1099\times 7.5\ gal=8242.5\ gal

The swimming pool will contain approx 8243\ gal of water.

6 0
3 years ago
Very easy! PLEASE HELP I will mark brainliest
Sladkaya [172]

Answer:

B i think let me solve

Step-by-step explanation:

8 0
3 years ago
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