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tino4ka555 [31]

2 years ago

12

Find the unit rate. Round to the nearest hundredth, if necessary. $5.99 for 19 lb

1 answer:

sveta [45]2 years ago

5 0

Answer:

0.315 per lb

Step-by-step explanation:

You might be interested in

when the perimeter of a regular polygon is divided by 5 the lenght of a side is 25 cm what is the perimeter

Harlamova29_29 [7]

Answer:

<h2><u><em>125 cm</em></u></h2>

Step-by-step explanation:

when the perimeter of a regular polygon is divided by 5 the lenght of a side is 25 cm what is the perimeter?

A Regular polygon is a polygon with all sides of equal length

so

25 * 5 = 125 cm

6 0

2 years ago

LenKa [72]

I'm going to take a guess regarding what you meant to type in:

<span>3x-9 X +6x+5
E(x)= ------- × -------------
2 2
X -9 X +5x+6

3(x+3) 6x+5
becomes E(x) = ----------- * ------------
x-9 5x+6

This cannot be reduced.

Try again to share this problem. Thank you.

</span>

7 0

3 years ago

[10 pts] b) y"+12y'+36 y = 0

yarga [219]

Answer:

The general solution of the differential equation is:

$y=c_1e^{-6t}+c_2te^{-6t}$

Step-by-step explanation:

We have a second order homogeneous differential equation $y''+12y'+36 y = 0$

We need to find the characteristic polynomial

$x^2+12x-36=0$

Next, we find the roots as follows:

$\mathrm{Solve\:by\:factoring}\\\\\mathrm{Rewrite\:}x^2+12x+36\mathrm{\:as\:}x^2+2x\cdot \:6+6^2\\\\\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a+b\right)^2=a^2+2ab+b^2\\\\\left(x+6\right)^2=0\\\\\mathrm{Solve\:}\:x+6=0:\quad x=-6$

The roots of characteristic polynomial are $r=-6$ and $s=-6$

When the roots are real and equal the general solution of the differential equation is:

$y=c_1e^{-6t}+c_2te^{-6t}$

4 0

2 years ago

What is 2x(y+5)=2.5y<br> What is 2x(y+5)=2.5y

White raven [17]

Answer:

simplify: 2.5 =(y+5)

reorder the terms: 2.5y=(5+y)

remove the parenthesis: 2.5y=5+y

solving: 2.5y=5+y

move all terms containing y to the left, all other terms to the right.

add -1y to each side of the equation

2.5y+-1y=5+y+-1y

combine like terms 2.5y+-1y=1.5y

1.5y=5+y+-1y

combine like terms: y+-1y=0

1.5y=5+0

1.5y=5

divide each side by 1.5

y=3.333333333

simplifying

y=3.333333333

Step-by-step explanation:

8 0

2 years ago

Darius is putting tiles on the roof of his house. After working for 3 1/3 hours, he has completed 4/5 of the roof. Can Darius pu

tangare [24]

Answer:

No.

Step-by-step explanation:

It is given that Darius is putting tiles on the roof of his house.

Darius had completed = $\frac{4}{5}$ th of the work

He takes time = $3 \frac{1}{3}$ hours to complete $\frac{4}{5}$ th of the work

The remaining work = $1 -\frac{4}{5}$

$=\frac{5-4}{5}$

$=\frac{1}{5}$

∴ Darius completes $\frac{4}{5}$ th of the work in = $\frac{10}{3}$ hours

So, $\frac{1}{5}$ th of the work in = $\frac{10}{3} \times \frac{5}{4} \times \frac{1}{5}$ hours

$=\frac{10}{12}$ hours

Therefore total time taken to complete the work $=\frac{10}{3}+\frac{10}{12}$ hours

$=\frac{40+10}{12}$ hours

$=\frac{50}{12}$ hours

$=4\frac{2}{12}$ hours

$=4\frac{1}{6}$ hours

Thus, Darius continues to work at the same rate will not be able to complete the work in 4 hours.

8 0

2 years ago