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olga nikolaevna [1]
3 years ago
10

How many kilometers are in 3 cantimeters

Mathematics
1 answer:
Leni [432]3 years ago
8 0

Answer:

the answer would be 3×10^-5 kilometers

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To reach a vacation spot, the Jones family first traveled by plane and then drove the
navik [9.2K]

The distance flown by plane is 750 kilometers.

Step-by-step explanation:

Let,

Distance traveled by plane = x

Distance traveled by car = y

Total distance = x+y

According to given statement;

The distance by car was 125 kilometers less than the  distance by plane.

y = x - 125    => x=y+125  Eqn 1

The total distance was 500 kilometers less than three times the distance traveled by car.

Total distance = 3y - 500

x+y=3y-500   Eqn 2

Putting value of x from Eqn 1;

(y+125)+y=3y-500\\y+y+125=3y-500\\2y=3y-500-125\\2y-3y=-625\\-y=-625\\y=625

Putting y=625 in Eqn 1

x=625+125\\x=750

The distance flown by plane is 750 kilometers.

Keywords: linear equations, substitution method

Learn more about linear equations at:

  • brainly.com/question/10435816
  • brainly.com/question/10435836

#LearnwithBrainly

3 0
3 years ago
Pls Help i have no idea what im doing and this is overdue
kondaur [170]

Answer:

A reflection of D over line l would simply look like a backwards D. Reflecting it again over the line m would make it look like it did originally, a normal D.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Ann and Joes farther donated $3 for every lap they swam in a swim-a-thon.Ann swam 21 laps, and joe swam 15 laps.Use the. Distrib
MariettaO [177]
3(21+15) is 3*21 and 3*15 which equal 63+45 which is 108 dollars
7 0
4 years ago
The bleachers at the football game are 7/8 full, and 1/2 the fans in the bleachers are rooting for the home team. What fraction
ioda

<u>Answer: </u>

The fraction of the bleachers filled with the home team is \frac{7}{6}

<u>Solution: </u>

Given that,

The bleachers at the football game are \frac{7}{8}

In those bleachers \frac{1}{2}  of the fans are rooting for the home team

So, the fans that are filled with the home team is \left(\left(\frac{7}{8}\right) \times\left(\frac{1}{2}\right)\right)

Hence, the required fraction is \left(\left(\frac{7}{8}\right) \times\left(\frac{1}{2}\right)\right)

Removing the brackets we get,

\frac{7 \times 1}{8 \times 2}

=\frac{7}{6}  

The required fraction is \frac{7}{6}

5 0
3 years ago
Which expression is equivalent to (2r2+r - 1) – (3r2+48 - 5)?
BigorU [14]

Answer:

-r^2-3r+4

Step-by-step explanation:

The question is to simplify the expression  (2r^2+r-1)-(3r^2+4r-5)

First, we can eliminate the 2nd parenthesis expression by changing signs of all the terms since there is a "-" sign in front. Then we add the "Like Terms". The process is shown below:

(2r^2+r-1)-(3r^2+4r-5)\\=2r^2+r-1-3r^2-4r+5\\=-r^2-3r+4

The first answer choices (has some typos) is correct. The correct answer is  -r^2-3r+4

7 0
3 years ago
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