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3 years ago

Solve the inequality and enter your solution as an inequality comparing a variable to a number x+9>13

Mathematics

1 answer:

stellarik [79]3 years ago

3 0

Answer:

x>4

Step-by-step explanation:

Step 1: Subtract 9 from both sides.

x+9−9>13−9

x>4

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Richard works at an ice cream shop .Regular cones get 2scoops of ice cream ; large cones get 3 scoops of ice cream.one hot Satur

marishachu [46]

Answer:

Step-by-step explanation:

reg. cones get 2 scoops, lg cones get 3 scoops

he scooped 234 regular cones.....234* 2 = 468 scoops

he scooped 156 lg cones.....156 * 3 = 468 scoops

thats a total of 468 + 468 = 936 scoops

each scoop weighs 3 oz.....so the total weight of the ice cream is :

936 * 3 = 2808 oz

1 lb is 16 oz....so 2808 oz is : 2808/16 = 175.5 lbs

if a tub of ice cream weighs 10 lbs, then richard used :

175.5 / 10 = 17.55.......he used 17.55 tubs full

3 0

3 years ago

Read 2 more answers

The window of a burning building is 24 meters above the ground. the base of a ladder is placed 10 meters from the building. How

Orlov [11]

14 meters? Bc 24-10 = 14

3 0

3 years ago

If my radius is 10 feet, what is my diameter?

Anika [276]

Answer:

Your diameter would be 20.

Step-by-step explanation:

1. Two radius added together is the diameter (if you're talking about a circle.)

2. You add 10+10 because as you said your radius is 10.

3. It would be 20.

Hope this helped!

4 0

3 years ago

an office space in new-york city measures 48 by 56. if it sells for 565 per square foot, what is the total cost of the office sp

inessss [21]

I added 48+56 and got 104

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3 years ago

Solve the given system of equations using either Gaussian or Gauss-Jordan elimination. (If there is no solution, enter NO SOLUTI

cricket20 [7]

Answer:

The system has infinitely many solutions

$\begin{array}{ccc}x_1&=&-x_3\\x_2&=&-x_3\\x_3&=&arbitrary\end{array}$

Step-by-step explanation:

Gauss–Jordan elimination is a method of solving a linear system of equations. This is done by transforming the system's augmented matrix into reduced row-echelon form by means of row operations.

An Augmented matrix, each row represents one equation in the system and each column represents a variable or the constant terms.

There are three elementary matrix row operations:

Switch any two rows
Multiply a row by a nonzero constant
Add one row to another

To solve the following system

$\begin{array}{ccccc}x_1&-3x_2&-2x_3&=&0\\-x_1&2x_2&x_3&=&0\\2x_1&+3x_2&+5x_3&=&0\end{array}$

Step 1: Transform the augmented matrix to the reduced row echelon form

$\left[ \begin{array}{cccc} 1 & -3 & -2 & 0 \\\\ -1 & 2 & 1 & 0 \\\\ 2 & 3 & 5 & 0 \end{array} \right]$

This matrix can be transformed by a sequence of elementary row operations

Row Operation 1: add 1 times the 1st row to the 2nd row

Row Operation 2: add -2 times the 1st row to the 3rd row

Row Operation 3: multiply the 2nd row by -1

Row Operation 4: add -9 times the 2nd row to the 3rd row

Row Operation 5: add 3 times the 2nd row to the 1st row

to the matrix

$\left[ \begin{array}{cccc} 1 & 0 & 1 & 0 \\\\ 0 & 1 & 1 & 0 \\\\ 0 & 0 & 0 & 0 \end{array} \right]$

The reduced row echelon form of the augmented matrix is

$\left[ \begin{array}{cccc} 1 & 0 & 1 & 0 \\\\ 0 & 1 & 1 & 0 \\\\ 0 & 0 & 0 & 0 \end{array} \right]$

which corresponds to the system

$\begin{array}{ccccc}x_1&&-x_3&=&0\\&x_2&+x_3&=&0\\&&0&=&0\end{array}$

The system has infinitely many solutions.

$\begin{array}{ccc}x_1&=&-x_3\\x_2&=&-x_3\\x_3&=&arbitrary\end{array}$

7 0

3 years ago