All categories

2 years ago

If a train travels 255 miles in 3 hours, how far will the train travel in 5 hours at the same rate?

Mathematics

2 answers:

marissa [1.9K]2 years ago

8 0

Answer:

425 miles

Step-by-step explanation:

If it travels for a longer time, it will cover more miles.

You can therefore treat this as direct proportion without having to find the actual speed of the train. It is enough to know that it will travel at the same speed.

255/3 = x/5

85 = x/5

x = 425

dem82 [27]2 years ago

7 0

The train will travel 425 miles

You might be interested in

2(3²+4²)=? WHATS THE ANSWER

yulyashka [42]

Answer:

Step-by-step explanation:

P- Parenthesis

E- Exponents

M- Multiplication

D- Division

A- Addition

S- Subtraction

(3²+4²)

3*3= 9 4*4= 16 16+9= 25 2(25) 25*2= 50

Hope this helped! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

( ﾟдﾟ)つ Bye

7 0

2 years ago

What is the length of the arc if: 11. r=10 n=20 A15(pi)/ 7 B13(pi)/ 5 C16(pi)/ 2 D11(pi)/ 4 E 10(pi)/ 9 F 9(pi)/ 4 12. r=3 n=6 A

Vilka [71]

Step-by-step explanation:

The formula for arc length [for the angle in degrees] is:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

here,

$n$ = degrees

$r$ = radius

using this we'll solve all the parts:

r = 10, n = 20:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (10) \left(\dfrac{20}{360}\right)$

from here, it is just simplification:

2 and 360 can be resolved: 360 divided by 2 = 180

$L = \pi (10) \left(\dfrac{20}{180}\right)$

10 and 180 can be resolved: 180 divided by 10 = 18

$L = \pi \left(\dfrac{20}{18}\right)$

finally, both 20 and 18 are multiples of 2 and can be resolved:

$L = \pi \left(\dfrac{10}{9}\right)$

$L = \dfrac{10\pi}{9}$ Option (E)

r=3, n=6:

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (3) \left(\dfrac{6}{360}\right)$

$L = \dfrac{\pi}{10}$ Option (D)

r=4 n=7

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (4) \left(\dfrac{7}{360}\right)$

$L = \dfrac{7\pi}{45}$ Option (C)

r=2 n=x

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (2) \left(\dfrac{x}{360}\right)$

$L = \dfrac{x\pi}{90}$ Option (D)

r=y n=x

$L = 2\pi r \left(\dfrac{n}{360}\right)$

$L = 2\pi (y) \left(\dfrac{x}{360}\right)$

$L = \dfrac{xy\pi}{180}$ Option (E)

6 0

3 years ago

A. Slope is 3.5, and (-3, 2) is on the line.

Shkiper50 [21]

Answer:

b = 12.5

Step-by-step explanation:

2=3.5(-3)+b

2=-10.5+b (you add 10.5 on both sides)

b= 12.5

6 0

2 years ago

10. A garden 150 m long and 80 m wide has a road 2 m wide all around

Sergio [31]

Answer:

length l =150

breadth b = 80

lf 2 m wide of road is inside the garden

then

lt's area = l ×b

= 150 × 2

= 300m^2

6 0

3 years ago

Need answer fasttt

Deffense [45]

Answer:

295.4 $in^3$

Step-by-step explanation:

$V=\frac{1}{3}(b)^2(h)\\\\ =\frac{1}{3} (11.5)^2(6.7)\\\\=\frac{1}{3}(135.25)(6.7)\\\\$

= 295.358

≈ 295.4

5 0

2 years ago