(2/11x-3-5y)+(-3/11x+5y+5.5) what is the answer for this I need help quick I'm in math

Melanie can afford a $310-per-month car payment. If she is being offered a 5-year car loan with an APR of 3.0%, compounded month

adell [148]

Here is the answer
$17,252.23

6 0

4 years ago

Read 2 more answers

A school is planning to construct two rectangular play areas in the playground. The length of play area A must be 1 foot longer

Anna11 [10]

Answer:

А.The system has two solutions, but only one is viable because the other results in a negative width.

Step-by-step explanation:

Given

Let:

$L_A \to$ length of play area A

$W_A \to$ width of play area A

$L_B \to$ length of play area B

$W_B \to$ width of play area B

$x \to$ Area of A

$y \to$ Area of B

From the question, we have the following:

$L_A = 1 + 4W_A$

$W_B = 2 + W_A$

$L_B = 2 + 3W_B$

$x = y$

The area of A is:

$x = L_A * W_A$

This gives:

$x = (1 + 4W_A) * W_A$

Open bracket

$x = W_A + 4W_A^2$

The area of B is:

$y = L_B * W_B$

$y = (2 + 3W_B) * ( 2 + W_A)$

Substitute: $W_B = 2 + W_A$

$y = (2 + 3(2 + W_A)) * ( 2 + W_A)$

Open brackets

$y = (2 + 6 + 3W_A) * ( 2 + W_A)$

$y = (8 + 3W_A) * ( 2 + W_A)$

Expand

$y = 16 + 8W_A + 6W_A + 3W_A^2$

$y = 16 + 14W_A + 3W_A^2$

We have that:

$x = y$

This gives:

$W_A + 4W_A^2 = 16 + 14W_A + 3W_A^2$

Collect like terms

$4W_A^2 - 3W_A^2 + W_A -14W_A - 16 =0$

$W_A^2 -13W_A - 16 =0$

Using quadratic calculator, we have:

$W_A = -14.1$ or $W = 1.13$ --- approximated

But the width can not be negative; So:

$W = 1.19$

7 0

3 years ago

a tank contains 2840 l of pure water. solution that contains 0.01 kg of sugar per liter enters the tank at the rate 4 l/min, and

alexdok [17]

By using differential equations' concept, we get that there is no sugar in the beginning.

<h3>What is a differential equation?</h3>

A differential equation is an equation that connects the derivatives of one or more unknown functions.

Given:

Pure water = 2840 litres

sugar = 0.01kg per liter

Rate of sugar entering the tank = 4liter/min

New solution drains out at the rate = 4 litre/min

To find: sugar in the beginning.

Finding:

(a) In the beginning, the tank contains only pure water and no solution of water with sugar.

Hence, the sugar is null for t = 0.

To learn more about differential equations, refer to the link: brainly.com/question/1164377

#SPJ4

5 0

2 years ago

T=0.003x2 +0.001x How many objects are required to keep the computer busy for exactly 7 seconds?

MariettaO [177]

I hope this helps .

5 0

2 years ago

Figure B is a scaled copy of Figure A. <br> What is the scale factor from Figure A to Figure B?

Free_Kalibri [48]

The scale factor to convert Figure A to B is $\frac{1}{2}$ (0.5)

Step-by-step explanation:

Step 1; To determine the scale factor, we need to know the dimensions of the shape before scaling and its dimensions after scaling. From the given diagram, figure A has a base length of 6 units while its height is 4 units. Figure B has a base length of 3 units and a height of 2 units.

Step 2; To find the scale factor, we divide a particular dimension from figure B with the same dimension in figure A.

The base length of figure B /the base length of figure A = $\frac{3}{6}$ = $\frac{1}{2}$ ,

Similarly, the height of figure B / the height of figure A = $\frac{2}{4}$ = $\frac{1}{2}$ .

So by multiplying figure A with scale factor $\frac{1}{2}$ we get figure B.

6 0

3 years ago