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Luda [366]
2 years ago
6

A train goes at a constant speed. If it covers 150 miles in 2 1/2 hours,

Mathematics
1 answer:
emmasim [6.3K]2 years ago
6 0

Answer:

120 miles

Step-by-step explanation:

if you represent 2 1/2 hours in 5 sections of 30 minute and devide 150 by 5 you get 30 so the train is traviling 1 mile per minute so just subtract 30 and you get 120

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GIVING BRAINLIEST TO WHOEVER HAS A GOOD EXPLANATION AND ANSWER
Katyanochek1 [597]

Answer:

-1/5>-10/4

Step-by-step explanation:

In the negatives, If you take away the negative the lower number is more.

Think about a number line, if you are at -1/5, it means that you are 1/5 away from 0. If you are at -10/4, It means that you are 10,4 away from 0.

In conclusion, -1/5>-10/4

pls mark Brainliest

3 0
2 years ago
A gardener has 520 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it doe
Bond [772]

The shortest side is 130 feet, the longest side is 260 feet and the greatest possible area is 33800 square feet

<h3>What dimensions would guarantee that the garden has the greatest possible area?</h3>

The given parameter is

Perimeter, P = 520 feet

Represent the shorter side with x and the longer side with y

One side of the garden is bordered by a river:

So the perimeter is:

P = 2x + y

Substitute P = 520

2x + y = 520

Make y the subject

y = 520 - 2x

The area is

A = xy

Substitute y = 520 - 2x in A = xy

A = x(520 - 2x)

Expand

A = 520x - 2x^2

Differentiate

A' = 520 - 4x

Set to 0

520 - 4x = 0

Rewrite as:

4x= 520

Divide by 4

x= 130

Substitute x= 130 in y = 520 - 2x

y = 520 - 2 *130

Evaluate

y = 260

The area is then calculated as:

A = xy

This gives

A = 130 * 260

Evaluate

A = 33800

Hence, the shortest side is 130 feet, the longest side is 260 feet and the greatest possible area is 33800 square feet

Read more about area at:

brainly.com/question/24487155

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1 year ago
At the skateboard park, the hot new attraction is the U-Dip, a cement structure embedded into the ground. The cross-sectional vi
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Answer:

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Step-by-step explanation:

shahahavsvnwbwnsbhas

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2 years ago
Simplify <br> 3√45<br> a)5√15<br> b)9√5<br> c)15√9
aliina [53]
Well if I did the math correctly it should be B) <span>9√5</span>
8 0
3 years ago
HELP ASAP I give brainliest!
Bingel [31]
1. 5%

2. That’s the only answer I have, sorry.
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2 years ago
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