In order to use substitution, you need to isolate a variable on one of the equations:
-2x+y=0
y=2x
Then you plug that equation into the other equation. Since we isolated y, we plug in 2x for y in the other equation:
3x-(2x)=5
x=5
Then plug the value you found into any equation to solve for the other variable:
3(5)-y=5
15-y=5
-y=-10
y=10
So your answers are x=5, y=10
70
Step-by-step explanation:
here,
area of parallelogram =base ×height
so,
base is given 10 cm and height is given 7 cm
Now
base ×heights
10×7
70
Answer:
i do not know how to do this yet but it looks like a high school thing
Step-by-step explanation:
Answer: Hi I think that I can help you with your problem!
Let which means
Here a bar over 8 means that there the given decimal value is non terminating and there are a large numbers of 8 present after the decimal.
To solve the given non terminating decimal as fractions, we will have to eliminate the bar term from the given value.
So, we can rewrite as:
......(1)
Now, let us multiply the above with 10.
....... (2)
Now, let us subtract (1) from (2):
So, in simplified fractions:
Step-by-step explanation:
Hey, thanks for submitting your question to brainly!
From 175 to 210 is a 20% increase!
