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Fofino [41]
3 years ago
11

A train travels 170 miles in 4 hours . How far will the train travel in 6 hours , if it travels at the same speed ? Answer Choic

es : (A) 240 mi , (B) 245 mi , (C ) 252 mi , (D) 255 .
Mathematics
1 answer:
DerKrebs [107]3 years ago
7 0

Answer:

(170/4)x61= 255

Step-by-step explanation:

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For the right triangle shown, which expression represents the length of CA?
Nataly [62]

Answer:

  b. 5tan(25°)

Step-by-step explanation:

The tangent function gives the ratio between the side opposite and the side adjacent to the angle. That is ...

  tan(25°) = ?/5

Multiplying by 5 solves the equation:

  ? = 5·tan(25°)

6 0
3 years ago
A. A car travels 20 m/s and reached its destination in a record time of 10 secs. Calculate the distance
Doss [256]
The car travelled 200 meters

20 m/s times 10 = 200 m in 10 s
8 0
2 years ago
The sum of the digits of a 2-digit number is 10. If 18 is added to the number, the digits of the new number are those of the ori
Aliun [14]

Answer:

46

Step-by-step explanation:

Let (ab) represent a number with a in the ten's position and b is the one's position.

This means (ab) actually has value of 10a+b.

We are given the sum of those digits of (ab) is 10; this means a+b=10.

It says if 18 is added to the number (ab), then the result is (ba).

So (ab) has value 10a+b and

(ba) has value 10b+a.

We are given then:

(ab)+18=(ba)

10a+b+18=10b+a

Subtract 10a on both sides:

b+18=10b+a-10a

Simplify:

b+18=10b-9a

Subtract b on both sides:

18=10b-b-9a

18=9b-9a

Divide both sides by 9:

2=b-a

Rearrange by commutative property:

2=-a+b

So the system of equations we want to solve is:

a+b=10

-a+b=2

-------------------------Add equations together (this will eliminate the variable a and allow you to go ahead and solve for b:

0+2b=12

2b=12

Divide both sides by 2:

b=\frac{12}{2}

Simplify:

b=6

If b=6 and a+b=10, then a=4.  a=4 since 4+6=10.

So the original number is (46).

18 more than 46 is 18+46=(64) which is what we wanted.

We also have the sum of 4 and 6 is 10 as well.

7 0
3 years ago
PLEASE HELPPPPP
Serggg [28]

Answer:

C

Step-by-step explanation:

Please mark brainliest

5 0
3 years ago
What is 4.292 in word form?
LuckyWell [14K]

Answer:

four and two hundred ninety-two thousandths.

7 0
3 years ago
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