All categories

3 years ago

Pls guys help me pls :c

Mathematics

1 answer:

Vinil7 [7]3 years ago

8 0

Answer: A. $x\geq21\dfrac{2}{3}$ .

Step-by-step explanation:

The given inequation: $81-1\dfrac{1}{5}x\leq55$

$\Rightarrow\ 81-\dfrac{6}{5}x\leq55$

Multiplying 5 on both the sides, we get

$5(81-\dfrac{6}{5}x)\leq5\times55\\\\\Rightarrow\ 405-6x\leq275\\\\\Rightarrow\ 6x\geq405-275\\\\\Rightarrow\ 6x\geq130\\\\\Rightarrow\ x\geq\dfrac{130}{6}\\\\\Rightarrow\ x\geq\dfrac{65}{3}\\\\\Rightarrow\ x\geq21\dfrac{2}{3}$

Hence, the inequality for x is $x\geq21\dfrac{2}{3}$ .

So, the correct option is A. $x\geq21\dfrac{2}{3}$ ..

You might be interested in

3x+y=5 2x-2y=-2 solve by using process of elimination (find both x and y)

Bingel [31]

Answer:

The value of 'x' is 1 and 'y' is 2. So, the point is (1, 2).

Step-by-step explanation:

Given:

The given pair of linear equations are:

$3x+y=5\\2x-2y=-2$

In order to solve by elimination method, we have to eliminate any one variable using mathematical operations. Let us eliminate 'y'.

Multiplying the first equation by 2 and adding the result to the second equation. This gives,

$(3x+y)\times 2=5\times 2\\6x+2y=10\\2x-2y=-2\\+\\----------\\8x+0=8\\8x=8\\x=\frac{8}{8}=1$

Now, the value of 'y' can be calculated by plugging in 1 for 'x' in the first equation. This gives,

$3(1)+y=5\\3+y=5\\y=5-3\\y=2$

Therefore, the value of 'x' is 1 and 'y' is 2.

The solution is (1, 2).

6 0

3 years ago

The equation 2y+53=165 represents the situation “ Joel spent $165 on a pair of jeans and two shirts at the same price.”

marissa [1.9K]

Y represents the price of the shirts that said person purchased.

8 0

2 years ago

What must be added to 3x -7 to make x 2 + 4x -1?

Elanso [62]

There is the answer!

6 0

3 years ago

Write the domain and range of the graph below…

saveliy_v [14]

Answer:

Range:-4 is less then Y is less then 9. Domain: -5 is less then x is less then 4

Step-by-step explanation:

Look at where the lines end. That will help you find where the domain and ranges are.

5 0

2 years ago

Compare The Numbers? 6/9 ___ 3/4 A. = B. > C. <

olasank [31]

The answer is C. The symbol means less than.

6 0

2 years ago

Read 2 more answers

Pls guys help me pls :c​

Pls guys help me pls :c