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2 years ago

I'm begging someone please help pleasedeeeeeeeeeeeeee PLEASEEWW SOMEONE I REALLY NEED HELPPP PLEASEEEEEEE

Mathematics

1 answer:

artcher [175]2 years ago

8 0

Answer:

2 oldies and 6 new releases

Step-by-step explanation:

let x equal number of oldies

let y equal number of new releases

2x + 4y = 28

x + y = 8

x = 8 - y

2(8 - y) + 4y = 28

16 - 2y + 4y = 28

2y = 28 - 16

2y = 12

y = 12/2

y = 6

x = 8 - y

x = 8 - 6

x = 2

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Name the identical triangles and measurement of side BA

aalyn [17]

Step-by-step explanation:

BE/BC=BD/BA

tHE TWO SIMILAR TRIANGLES ARE BED AND BC. tHE PROPORTION ABOVE REPRESENTS USE OF THE TWO SIMILAR TRIANGLES.

4/(4 + 10) = 5/(5+X) Cross Multiply

4(5+x) = 5(4+10)m

20 +4x=20 +50 subtract 20 from both sides

4x = 50 divide by 4

x =12.5

4 0

3 years ago

I need help SOMEONE PLZ HELP ME OUT WITH THIS !! THANK UU

Mama L [17]

Answer:

since they are alternate exteriors, we put a equal sign

2x+78=5x+15

next we subtract 78 on both sides

2x+78-78=5x+15-78

2x=5x-63

then we subtract 5x on both sides

2x-5x=5x-5x-63

-3x=-63

after that we divide -3 on both sides

-3x/-3=-63/-3

and the answer is

x=21

Step-by-step explanation:

8 0

2 years ago

For the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled b

dmitriy555 [2]

Answer:

2019.

Step-by-step explanation:

We have been given that for the years from 2002 and projected to 2024, the national health care expenditures H, in billions of dollars, can be modeled by $H = 1,500e^{0.053t}$ where t is the number of years past 2000.

To find the year in which national health care expenditures expected to reach $4.0 trillion (that is, $4,000 billion), we will substitute $H=4,000$ in our given formula and solve for t as: