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Vadim26 [7]
3 years ago
6

Problem 3

Mathematics
2 answers:
coldgirl [10]3 years ago
6 0

Answer:

$62.bope this helpsjensbdnd

lukranit [14]3 years ago
3 0
62 dollars left in the tax
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Two trains leave two different stations 300 km apart; the first starts at noon and the second at 12 15 h. Travelling on parallel
alexgriva [62]

Answer:

See below

Step-by-step explanation:

From noon to 1500  is three hours

  train A    then travels  <u> 3x</u>   where x = speed in km/hr

  train B   only travels for 2.45 hours and covers

                  <u>   2.45 ( x + 15)  </u>        where x + 15 is its speed in km/hr

       these two values sum to the 300 km distance

3x     +     2.45 ( x + 15) = 300

3x + 2.45 x  + 36.75 = 300

x = 48.3 km/hr       x+15= 63.3 km / hr

8 0
2 years ago
A cross country runner Covers 2.5 miles in 12.5 minutes what is the runners average speed in miles per hour
stiks02 [169]
I believe the answer is 5 because if however many times you can multiply 2.5 into 12.5, you get the answer of 5.
8 0
3 years ago
Read 2 more answers
Please help me i’ll give brainliest
liraira [26]

Answer:

105 degrees

Step-by-step explanation:

You need to understand the properties of corresponding angles and supplementary angles.

6 0
3 years ago
Detailed answers appreciated: (7a -4) (2a -5)
igor_vitrenko [27]
Expand the expression?

Perform indicated multiplication:

7a(2a)+7a(-5)-4(2a)-4(-5)

14a^2-35a-8a+20  combine like terms, ie (-35a-8a)=-43a

14a^2-43a+20
5 0
2 years ago
Read 2 more answers
GEOMETRY// Area? Also please provide an explanation(:
Zina [86]

Answer:

A = 80

Step-by-step explanation:

B = 8

H = 10

Area of a Parallelogram = B x H = 8 x 10 = 80

8 0
3 years ago
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