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Deffense [45]
3 years ago
6

a barge can safely haul no more than 400 tons across the river. the barge has an empty weight of 24 tons. the average weight of

the railroadd cars is 4 tons each. how many railroad cars can the barge haul?
Mathematics
1 answer:
Vaselesa [24]3 years ago
6 0

Answer:

The barge can carry up to 94 railroad cars.

Step-by-step explanation:

Create an inequality to represent the weight of the barge to the max weight.

24 + 4r ≤ 400

Solve for r:

4r ≤ 400 - 24

4r ≤ 376

4r ≤ 376/4

r ≤ 94


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Answer:

-5 - 3x > 10

Step-by-step explanation:

x = -6

Plug in the x value for each inequality:

-5 - 3(-6) > 10

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True

-3 - 5(-6) < -14

-3 + 30 < -14

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False

1 - 2(-6) > 13

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2 - (-6) < -3

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Only one of these is true; that is the answer.

8 0
3 years ago
The value of y varies directly as x and y is 9 when x is -3 what constant of variation k?
Lady bird [3.3K]
Y/x=k

when y=9, then x= -3
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7 0
3 years ago
Solve the proportion using equivalent ratios. Explain the steps you used to solve the proportion, and include the answer in your
rodikova [14]

Answer: Your answer is X=6

Step-by-step explanation:

10/3 = 20/x

Determine the defined range

10/3 20/x, x=0

Cross-multiply

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Check if the solution is in the defined range

SOLUTION x=6

<u><em>I HOPE THIS HELPS IF NOT THE SORRY</em></u>

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4 0
3 years ago
Which inequality is represented by this graph? <br>​
erica [24]

Answer:

x > 4

Step-by-step explanation:

Because x is greater than 4

6 0
3 years ago
The commission for selling a house is$11825, which is 5.5% of the selling price. What is the selling price of the house?
Rzqust [24]
In this case, the best method starts with finding one percent of the selling price.  To do this, divide the commission ($11825) by 5.5.  This gets you 1%, which is $2150.  Next, multiply this number by 100, turning 1% into 100%.  Your final answer is $215,000.
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