Helppppp (8th) plsss

Mathematics

2 answers:

IgorC [24]2 years ago

5 0

Answer:

M= -2

Step-by-step explanation:

I hope this helps yoy

iren2701 [21]2 years ago

3 0

M=-2 man I gotchu :)))

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the sum of two numbers is 63. The smaller number is 9 less than the larger number.what are the numbers

dezoksy [38]

Answer:

27 and 36

Step-by-step explanation:

x + (x - 9) = 63

2x - 9 = 63

add 9 to both sides

2x = 72

Divide both sides by2

x = 36

x - 9 = 36 - 9

x - 9 = 27

7 0

3 years ago

Trey sold t-shirts and hats at a festival. His total profit was $106. He made a $4 profit for each t-shirt he sold. He also made

marta [7]

Answer:

18 t-shirts.

Step-by-step explanation:

Trey made a total profit $106 by selling t-shirts and hats. $34 of that profit was from selling hats, subtract 34 from 106 and you will get 72. So he made a profit of $72 in selling t-shirts. The t-shirts were $4 each, so if you divide 72 by 4 you will get 18. Meaning he sold 18 shirts.

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3 years ago

Two trains travel a 160 km track each day. The express travels 10 km h^-1 faster and take 30 minutes less time than the normal t

aniked [119]

Let s = the speed of the slower train in km/hrs+10 = the speed of the faster train in km/hrLet t = time in hrs for the slower train to go 160 kmt-5 = time in hrs for faster train to go 160 km---------------Slower train:(1)
160=s.t

Faster train:(2) 160=(s+10) .(t-.5)From (1)(1) t=160/s
use the relations given in following screenshot and then use quadratic equation.