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3 years ago

Write an inequality for the given statement: The sum of –18 and a number is more than 22.

Mathematics

1 answer:

tia_tia [17]3 years ago

7 0

Let that number be 'x'

So the inequality will be
- 18 + x > 22

or x - 18 > 22

Hope This Helps You!

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natali 33 [55]

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3 years ago

Find the perimeter of the square. (hint : make one side = to the other side to find y. Remember, you are finding the perimeter)

Anestetic [448]

Step-by-step explanation:

$5y = 4y + 3 \\ y = 3 \\ p = 4 \times a = 4 \times 3 = 12$

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2 years ago

Is .634 repeating a whole number

Vadim26 [7]

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3 years ago

Read 2 more answers

consider the equation is Y equals 1/square root of x and y=x-2. approximate solution of the system equations

emmasim [6.3K]

Answer:

$x=1$ and $x=4$

Step-by-step explanation:

We have the following system of equations:

$y=\sqrt{x}$ and $y=x-2$

To solve the problem, we need to equal the two equations:

$x-2=\sqrt{x}$ ⇒ $(x-2)^{2} =x$ ⇒ $x^{2} -4x + 4 = x$

⇒ $x^{2} -5x + 4 = 0$

So you need to find two numbers that added equal to 5 and multiplied equal to 4. These two numbers are $x=-1$ and $x=-4$ .

Then, the factorized form of the polynomial is: $(x-1)(x-4)$ .

The, the solution to the system of equations is: $x=1$ and $x=4$ .

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3 years ago

Worker A finishes the job in 10 hours; worker B finishes it in 12 hours, and worker C finishes it in 15 hours.

nika2105 [10]

A=1/10, b=1/12, c=1/15 (these are the rates for each worker...)

1.)

2(1/10)+4(1/12)+t/15=1

1/5+1/3+t/15=1

(3+5+t)/15=1

3+5+t=15

8+t=15

t=7

So it would take c 7 hours to finish the job.

2.)

1/40-1/60

(3-2)/120

1/120

The drain rate is 1/60. So you will need to find t when the tank is empty, while starting at 2/3 capacity...

2/3-t/60=0

(40-t)/60=0

40-t=0

t=40

It would take 40 minutes to empty the tank when it is 2/3 full.

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3 years ago