Answer:
The rational form of the given number 0.1777 = 
Step-by-step explanation:
The rational number is expressed as a number on the form of 
Now,here the given number in decimal form = 0.1777
To remove the decimal, firstly count the number of digits AFTER DECIMAL.
Here, number of digits after decimal = 4
SO, the decimal can be removed and replaced by 1 , by dividing with 1,0000.

Hence, the rational form of the given number 0.1777 = 
Answer:
The rate is usually given as a percent.
To find the discount, multiply the rate by the original price.
To find the sale price, subtract the discount from original price.
Step-by-step explanation:
The rate is usually given as a percent.
To find the discount, multiply the rate by the original price.
To find the sale price, subtract the discount from original price.
-0.9 will be one before -1 and -1.2 will be two after -1
Answer:
The solution is (-2,4)
Step-by-step explanation:
We'll solve the system
2x+5y=16
-5x-2y=2
using elimination by addition and subtraction.
Let's eliminate x first. To do this, multiply the first equation by 5 and multiply the second equation by 2. We get:
10x + 25y = 80
-10x - 4y = 4
----------------------
21y = 84. Thus, y = 84/21 = 4.
Subbing 4 for y in the second equation, we get
-5x -2(4) = 2, or
-8 - 2 = 5x, or
-10 = 5x. Thus, x = -10/5 = -2.
The solution is (-2,4)
Answer:
A. a = 2s - b -c
Step-by-step explanation:
Rearrange the equation in a way that you have only a on one side. When solving equations you can add, subtract, multiply or divide by the same number/variable/expression on the both sides.

Multiply by 2 to get rid of the fraction.

On the right side the 2 cancels out:

On the right side next to a are still b and c. But we want a alone. Subtract b.

b - b on right side gives 0.

The step above is usually skipped, because number + 0 = number.

Next to a there is still c. Subtract c.

c - c on the left is 0.

So our answer is:

It can be rewritten to (change sides):

And s · 2 can be rewritten to 2s:
