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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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3 years ago
Yan is climbing down a ladder. Each time he descends four rungs on the ladder, he stops to see how much farther he has to go
anastassius [24]

Question:

Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stopped to see how much farther he has to go. If Yan made eight stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan and climbed?

4+4+4+4

8+8+8+8

(-1)(4+4+4+4)

(-8) + (-8) + (-8) + (-8)

Answer:

Total = (-8) +(-8) +(-8) +(-8)

Step-by-step explanation:

Given

<em></em>Rungs = -4<em> --- It is negative because he is climbing down</em>

Steps = 8

Required

An expression for the number of rungs climbed

To do this, we simply multiply the number of rungs by the steps taken.

Total = Rungs * Steps

Total = -4 * 8

This can be rewritten as:

Total = -8 * 4

The product, when written as sum is:

Total = (-8) +(-8) +(-8) +(-8)

8 0
3 years ago
The area of a square is 36 square feet. Each side of the square measures
LenKa [72]
6 because 6x6=36
-------------------
3 0
3 years ago
Use the formula d=r*t to solve this problem.
ozzi

Answer:

D-186

Step-by-step explanation:

I hate edge

4 0
3 years ago
Read 2 more answers
Which side lengths form a right triangle
aleksandrvk [35]

Answer:

A and C

Step-by-step explanation:

  • A right triangle consists of two legs and a hypotenuse.
  • To find hypotenuse, we use The Pythagorean Theorem
  • The Pythagorean Theorem = {a}^{2}  +  {b}^{2}  =  {c}^{2}
  • two legs meet at a 90° angle and the hypotenuse is the longest side

3 - 4 - 5

6 - 8 - 10

7 - 24 - 25

5 - 12 - 13

are some basic right triangle

(about more, look picture)

<em><u>Just use hypotenuse formula :</u></em>

3 x 3 = 9

4 x 3 = 12

5 x 3 = 15

Option C is correct

{5}^{2}  +  { \sqrt{6} }^{2}  =  { \sqrt{31} }^{2}

Option A is correct

{5}^{2}  +  {5}^{2}  =  { \sqrt{50} }^{2}

But B isn't correct

Hope this helps ^-^

4 0
3 years ago
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