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tatuchka [14]
3 years ago
11

Someone help me pleaseee

Mathematics
1 answer:
Blababa [14]3 years ago
7 0
Is there two answers ?

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Find the volume and surface area of the composite figure. Give four answer in terms of pi
Gre4nikov [31]

Answer:

B

Step-by-step explanation:

Volume = Volume of cylinder + Volume of semi sphere

= pi*r^2*h+(2/3)*pi*r^3

=pi*(4*12+16/3)=pi*53.3

8 0
3 years ago
Which ordered pair (m, n) is a solution to the given system of linear equations? mc015-1.jp g (–4, –1) mc015-2.jp g (–1, –4) (11
mafiozo [28]

Answer:

(-1,-4)

Step-by-step explanation:

6m-5n=14  equation 1

2m+2n= -10  equation 2

using equation 2 we have

2m=-10-2n

m=-5-n equation 3

using equation 1  we have

6*(-5-n)-5n=14

-30-6n-5n=14

-11n=14+30

-11n=44

n=-44/11

n=-4

using equation 3

m=-5-n

m=-5-(-4)

m=-1

finally we have

(-1,-4)

6 0
3 years ago
Read 2 more answers
A shirt originally cost $50.97, but it is on sale for $40.78. What is the percentage decrease of the price of the shirt? If nece
Nina [5.8K]

Answer:

20% decrease.

Step-by-step explanation:

difference over original

50.97-40.78= 10.19

diff/orig=sales tax

10.19 / 50.97= 19.99..

19.99 is approximately 20.

6 0
4 years ago
There are 8 coins. Six of them are dimes. What Fraction of the coins are dimes
Alchen [17]
6/8 and simplified is 3/4
5 0
3 years ago
Read 2 more answers
PLEASEEEEEEEEE HELPPPPPPPPPP 70-100 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!! I NEED ONE MORE ANSWER BC I WANNA SEE WHICH ANSWER IS THE
Zina [86]

Answer and Explanation:

Gina wanted to swim at the pool. She is allowed to spend at most $30. The cost to swim in the pool is 3 dollars per hour plus a flat fee of $3. How many hours can Gina swim without going over her spending limit?

This problem can be represented by  3x+3\leq 30.

'x' would be the number of hours. "At most" means less than or equal to. So, the value of x would have to be less than or equal to 30.

3x+3\leq 30-3\\\\3x\leq 27\\\\3x/3\leq 27/3\\\\\boxed{x\leq9}

So, Gina would have a maximum of 9 hours to swim in the pool.

Hope this helps.

3 0
3 years ago
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