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3 years ago

Graph the equation on the coordinate plane. y = 2x + 1

Mathematics

1 answer:

Daniel [21]3 years ago

4 0

Answer:

Slope: 2

y-intercept: 1

x, y

0, 1

1, 3

Step-by-step explanation:

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A pool has two inlet pumps A and B. If pump A alone is open, it takes 12 hours to fill the pool with water. If pump B alone is o

Ket [755]

Answer:

The least amount of time (in hours) both pumps need to be open is 3 hours.

Step-by-step explanation:

According to the Question,

Given That, A pool has two inlet pumps A and B. If pump A alone is open, it takes 12 hours to fill the pool with water. If pump B alone is open, it takes 18 hours to fill the pool with water.

Let the Capacity of the Pool is 36Litre.

Thus, If pump A alone is open, it takes 12 hours to fill the pool with water. thus the Efficiency of Pipe A is 3 ltr/hour.

And, If pump B alone is open, it takes 18 hours to fill the pool with water. thus the Efficiency of Pipe B is 2 ltr/hour.

If the pool needs to be filled in 10 hours the least amount of time (in hours) both pumps need to be open is 3 hours.

Note:- if 3 hour both pipe open so 3 x (5) = 15 ltr Pool is Filled.

Now For Remaining 7 hour Pipe A with Efficiency 3 ltr/hour is open alone to fill the pool Remaining 7 x 3 = 21 ltr . Total 21+15 = 36ltr .

3 0

2 years ago

PLEASE HELP ME ILL MARK BRAINLIEST

monitta

Answer:

The answer is not listed but here it is 113040

Step-by-step explanation:

5 0

2 years ago

Help!!!!!!fast!!!!noww!!!!!help!!!!

mylen [45]

Answer:

q^12

Step-by-step explanation:

To solve, multiply the exponents

6 0

2 years ago

When all of the whole numbers between 100 and 350 are written down, how many times does the digit 4 appear?

lana [24]

Answer:

4 appears 55 times between 100 and 350

Step-by-step explanation:

First lets compute the number of times 4 appear from 100 to 200

104, 114, 124, 134, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 154, 164, 174, 184, 194

From 100 to 200: 4 appears 20 times ------- 1

Using the same method as above:

From 200 to 300: 4 appears 20 times ---------------2

From 300 to 350: 4 appears 15 times ---------------3

304, 314, 324, 334, 340, 341, 342, 343, 344 ( 2 times ), 345, 346, 347, 348, 349

From eq 1, 2 and 3

<em>From 200 to 350: 4 appears : 20 + 20 + 15 = 55 times</em>

3 0

3 years ago

Solve for y.<br> y/3 +12=39<br> Simplify your answer as much as possible.

Nastasia [14]

Y/3 +12 = 39

y/3 = 39-12

39-12 = 27
y = 27 × 3

y = 81

7 0

3 years ago