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alexandr402 [8]
3 years ago
14

What is it? help! PLS!

Mathematics
2 answers:
Natali5045456 [20]3 years ago
8 0

Answer:

Step-by-step explanation:

The 2 trains will pass each other in 2 hours because 80mph+60mph=140mph

You take 140x2=280

They will pass each other at 5:00

Andrews [41]3 years ago
7 0
The two trains are closing the initial distance between that of 280 miles by the sum of their two speeds. 80mph + 60mph = 140 mph. With the speed that the distance between the trains is closing, we can divide the starting distance to find out the number of hours until the trains pass. 280 miles / 140 mph = 2 hours. Since the trains left at 3:00 and will pass each other in 2 hours, they will pass each other at 5:00.
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Simplify the expression. Write the answer using scientific notation. (9x10^2)(2x10^10)
Advocard [28]

Answer:

1.8 x 10^{13}

Step-by-step explanation:

( 9 x 10²) (2 x 10^{10} )

= (9)(2) x  10^{10+2}

=18 x 10^{12}

= 1.8 x 10^{13}

4 0
3 years ago
Read 2 more answers
1130. 973 to 3 significant number​
maxonik [38]

Answer:1130

Step-by-step explanation:

3 0
3 years ago
Complete the remainder of the<br> table for the given function rule
MatroZZZ [7]

Answer:

y = 3

y = 2

y = 1

y = 0

Step-by-step explanation:

Given expression;

y = (-x/3) + 2

Find:

  1. Value of y, if x = -3
  2. Value of y, if x = 0
  3. Value of y, if x = 3
  4. Value of y, if x = 6

Computation:

Value of y, if x = -3

y = (-x/3) + 2

y = (3/3) + 2

y = 3

Value of y, if x = 0

y = (-x/3) + 2

y = (-0/3) + 2

y = 2

Value of y, if x = 3

y = (-x/3) + 2

y = (-3/3) + 2

y = 1

Value of y, if x = 6

y = (-x/3) + 2

y = (-6/3) + 2

y = 0

3 0
3 years ago
A tailor has 641 yards of material to make costumes. Each costume needs 3 yards of material. How many costumes can be made? Will
Arturiano [62]
641/3= 213 costumes with .666 leftover
3 0
4 years ago
T
chubhunter [2.5K]

9514 1404 393

Answer:

  $3277.23

Step-by-step explanation:

The future value of the CD with interest at rate r compounded semiannually for t years will be given by ...

  A = P(1 +r/2)^(2t)

where P is the principal value.

For the given rate and time, this is ...

  A = $2000(1 +0.05/2)^(2·10) = $2000(1.025^20) ≈ $3277.23

The value of the CD at maturity will be $3277.23.

6 0
3 years ago
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