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mote1985 [20]
4 years ago
12

X = y - 3

Mathematics
1 answer:
mojhsa [17]4 years ago
8 0
Hello,
{x=y-3
{x+3y=13;

{x=y-3
{y-3+3y=13;


{x=y-3
{4y=13+3;

{x=y-3
{4y=16;

{x=y-3
{y=16:4=4;

{x=4-3=1
{y=4;

{x=1
{y=4

the solution to the system of equations is (1,4)

Bye :-)
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Write 0.00605 in scientific notation.
vichka [17]
How many jumps is it from the decimal point to the position to the right of the 6

The answer to that is 3 jumps.  Since the move of the decimal made the number larger than it really is, it will take a negative value to put it back where it belongs.

So A) is the correct answer.  It is in scientific notation and if you move the decimal back 3 place you get the number you stared with.
5 0
3 years ago
three-quarters of students are wearing the school's colors. if there are 300 students how many are wearing the colors?
soldi70 [24.7K]

Answer:

225 students are wearing school colors.

Step-by-step explanation:

1. we know that 75% or .75 of the students are wearing school colors.

2. to find what this number is we need to know what 75% of 300 is.

("of" is a keyword meaning multiply)

3. We can do this by multiplying:

300(.75) = 225

4 0
4 years ago
Two trains leave the station at the same, one heading west and the other east. The westbound train travels at 55 miles per hour.
Mars2501 [29]

The time that taken for the two trains is 1.2 hours.

The computation of the time taken for the two trains is shown below:

Given that

The westbound train travels 55 miles per hour.

And, the eastbound train travels 75 miles per hour.

So, the total speed is

= 55 miles per hour + 75 miles per hour

= 130 miles per hour

The distance is 156 miles

So, the time taken is

= \frac{distance}{speed}\\\\= \frac{156\ miles}{130\  miles\ per\ hour}\\\\

= 1.2 hours

Therefore we can conclude that the time that taken for the two trains is 1.2 hours.

Learn more about the speed here: brainly.com/question/21791162

4 0
3 years ago
Read 2 more answers
What is 5 2/9 plus 7 5/15
alina1380 [7]
47/9+110/15=705/135+990/135=1695/135=12 15/27
7 0
3 years ago
Read 2 more answers
PLEASE HELP WILL MARK BRANILIEST
goldenfox [79]

Answer:

87% full

Step-by-step explanation:

<u>To find the solution:</u>

  1. Use the equation p·x=y where x = 13,920 and y = 16,000
  2. Since you are trying to find the percent, divide both sides of the equation by 13,920. p · 13,920(÷13,920) = 16,000(÷13,920)
  3. The step above cancels out the 13,920 leaving you with the answer. p=0.87
  4. 0.87 = 87%
5 0
3 years ago
Read 2 more answers
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