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Gnom [1K]
3 years ago
7

Two trains leave the same station at the same time, but are headed in opposite directions. One train travels at 70 mph and the o

ther train travels at 80 mph. How much time passes until the trains are 600 mph apart
Mathematics
1 answer:
AURORKA [14]3 years ago
7 0

Answer:

4 hours

Step-by-step explanation:

I hope this helps :)

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The sum of 0.8 and 0.04 can be written as a fraction where the numerator and the denominator are both positive integers. When th
Luda [366]

Answer: 0.84 as a fraction is 84/100

Greatest common factor is 4

Resulting fraction is 21/25

Addition of numerator and denominator of the resulting fraction is 46

Step-by-step explanation:

From the question, the sum of 0.8 and 0.04 is written as 0.8 + 0.04 = 0.84

Convert 0.84 to fraction = 84/100

The numerator and denominator in 84/100 are both positive integers.

The greatest common factor to the numerator and denominator is 4

Divide 84 by 4 = 21

Divide 100 by 4 = 25

Therefore, the resulting fraction is 21/25

Addition of 21 and 25 equals 46.

I hope this helps.

7 0
3 years ago
How do you find the domain and range of a function and write it in set notation? What is the process of finding it? Tips and tri
DerKrebs [107]

Answer:

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis

Step-by-step explanation:

plz forgive me if my answer is wrong

7 0
3 years ago
Read 2 more answers
Alexander purchased a computer on sale. The regional price was $1200. The sale price was 5/6 of the original price. How much did
mel-nik [20]
5/6 * 1200/1 = 6000/6
6000/6 = 1000
Alexander pay $1000 for the computer.
5 0
3 years ago
9x^2+ 8x + 3 = 0 solve using quadratic formula
pav-90 [236]
18x + 8x = -3
26x = -3
x = -3/26
3 0
3 years ago
Expand the following:<br> a) x(x + 2)<br> b) x(2x - 5)<br> c) 2x(3x + 4)<br> d) 6x(x - 2)
TEA [102]

Answer:

<h2>a. \:  {x}^{2}  + 2</h2>

<h2> </h2><h2>b. \: 2 {x}^{2}  - 5x</h2><h2> </h2><h2>c. \: 6 {x}^{2}  + 8x</h2><h3> </h3><h3>d. \: 6 {x}^{2}  - 12x</h3>

solution,

a. \: x(x + 2) \\  \:  \:  = x \times x + 2 \times x \\  \:  \:  =  {x}^{2}  + 2x

b . \: x(2x - 5) \\  \:  = x \times 2x - x \times 5 \\  \:  \:  = 2 {x}^{2}  - 5x

c. \: 2x(3x + 4) \\  \:  = 2x \times 3x + 2x \times 4 \\  \:  \:  = 6 {x}^{2}  + 8x

d. \: 6x(x - 2) \\  \:  \:  = 6x \times x  - 6x \times 2 \\  \:  \:  = 6 {x}^{2}  - 12x

<h2> </h2><h2 />

Hope this helps...

Good luck on your assignment..

4 0
3 years ago
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