All categories

3 years ago

Please help me with this math problem ASAP!!

Mathematics

2 answers:

vitfil [10]3 years ago

8 0

Let's list what we know.

We know 6 + d is the same as 21

We can use this.

6+d=21

Subtract 6 from both sides

d=15

So d=15

Alona [7]3 years ago

6 0

Answer:

21-6=15

Step-by-step explanation:

That helps weigh it down

You might be interested in

Evaluate the expression 10-2x for the x values given below

cricket20 [7]

For this case we have the following expression:

$10-2x$

Let's evaluate the expression for some values of x.

We have then:

For x = 1:

$10-2 (1)\\10-2\\8$

For x = 2:

$10-2 (2)\\10-4\\6$

For x = 3:

$10-2 (3)\\10-6\\4$

For x = 4:

$10-2 (4)\\10-8\\2$

For x = 5:

$10-2 (5)\\10-10\\0\\$

Answer:

The value of the expression in ordered pairs is:

(1,8)
(2.6)
(3,4)
(4.2)
(5.0)

5 0

3 years ago

The box shown is a cube. It has a volume of 64 cubic centimeters. How much does each side measure?

Bezzdna [24]

4?
this might be the answer but i’m not completely sure:) here’s what i used to *try* to solve it

7 0

3 years ago

Use the procedures developed to find the general solution of the differential equation. (Let x be the independent variable.)

makkiz [27]

Solution :

Given :

2y''' + 15y'' + 24y' + 11y= 0

Let x = independent variable

$(a_0D^n + a_1D^{n-1}+a_2D^{n-2} + ....+ a_n) y) = Q(x)$ is a differential equation.

If $Q(x) \neq 0$

It is non homogeneous then,

The general solution = complementary solution + particular integral

If Q(x) = 0

It is called the homogeneous then the general solution = complementary solution.

2y''' + 15y'' + 24y' + 11y= 0

$(2D^3+15D^2+24D+11)y=0$

Auxiliary equation,

$2m^3+15m^2+24m +11 = 0$

-1 | 2 15 24 11

2 13 11 0

∴ $2m^2+13m+11=0$

The roots are

$=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$=\frac{-13\pm \sqrt{13^2-4(11)(2)}}{2(2)}$

$=\frac{-13\pm9}{4}$

$=-5.5, -1$

So, $m_1, m_2, m_3 = -1, -1, -5.5$

Then the general solution is :

$= (c_1+c_2 x)e^{-x} + c_3 \ e^{-5.5x}$

8 0

3 years ago

Leanne's yearly income is 15,600 and she works twenty hours each week <br> What is her hourly rate

BartSMP [9]

Answer:

Leanne's hourly rate is $15 per hour

Step-by-step explanation:

Assuming a year is 52 weeks, divide $15,600/52 to find the $/week ($300). Then, divide $300/20 to find the $/hrs ($15)

8 0

4 years ago

Read 2 more answers

How do you do this plz help me (10 points)

cricket20 [7]

Answer:

Step-by-step explanation:

it easy tim will get 20 and sam will also get 20 so the ratio is 20;20 jope this helps you

5 0

4 years ago