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3 years ago

What is a triangular number?

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

4 0

It's a number that counts the objects that can form an equilateral triangle.

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A water delivery truck is filling the water tank at Morgan's house. The truck arrived with 2400 L of water. The number of liters

Luda [366]

Answer:

11.81 minutes

Step-by-step explanation:

Here is a simple step-by-step explaination of how to solve this word problem:

Since the truck has 2,400L in it to begin with, the first part of our equation will be 2,400L

$L = 2400L

$

Next we know that the water in the truck decreases at a rate of 110L/min, or Liters per minute.

So we will put that in the equation:

$L = -110L + 2400L$

Now that we have our equation set up, its time to solve.

To figure out how much water it needs to lose in total to end up with 1100 L left, we subtract 1,100 from 2,400.

$2,400 - 1,100= 1,300

$

Now we can take that number and divide it by how many liters per minute were lost.

$1,300/110=11.81$

So the total amount of time it took for the truck to have 1,100 L left is 11.81 minutes. Your answer would be

B. $L=-110t + 2400, t=11.8$ min

Hope this helps! : )

3 0

1 year ago

Read 2 more answers

Where does f(x) = 3x2 – 11x – 4 intersect the x-axis? The negative x-intercept is at ( , 0). The positive x-intercept is at ( ,

frez [133]

X=-1/3 and x=4 are the positive and negative x intercepts

6 0

3 years ago

Read 2 more answers

1. NBC: A jacket you like costs $64. You have a coupon for 20% off. How much will you pay for the jacket?

Artemon [7]

Answer:

$51.2

Step-by-step explanation:

If you subtract 64 to 20% then you end up with $51.2

8 0

2 years ago

For a project, Carlos must provide one cut-out paper model of each type of triangle: acute, right, and obtuse. He sketches each

koban [17]

I would most likely say 12.5 square units

3 0

1 year ago

Some boys and girls took part in a competition. 2/5 of the competitors were boys. 1/3 of the boys were disqualified from the com

GaryK [48]

Answer:

Step-by-step explanation:

According to the Question,

Given, Some boys and girls took part in a competition. 2/5 of the competitors were boys So 3/5 of the competitors were girls.

And there were Total 135 competitors.

So, the Number of Boys are 135 × (2/5) = 54 boys

Therefore, the Number of Girls in the competition is 135-54 = 81 Girls.

Now,

1/3 of the boys were disqualified from the competition. So, 54× (1/3) = 18 boys Disqualified . the Remaining boys are 54-18 = 36 boys left in Competition.
Then, The number of girls more than that of boys left in competition were 81-36 = 45

7 0

2 years ago