Plz help ill give brainlist to you

Mathematics

2 answers:

blondinia [14]3 years ago

7 0

0.2 is the decimal form

Tpy6a [65]3 years ago

5 0

Since we want to get 1/5 to a decimal we have to change the bottom to the tenth place. To get that we have to times the numerator and the denominator by 2 to get it to 10.

1*2 / 5*2 = 2/10 = 0.2

since 2 is over 10, that means the 2 would be in the tenths place.

Your answer is 0.2

(if it were 2 over 100 then 2 would be in the hundredths place [0.02])

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Read 2 more answers

In order to solve the following system of equations by addition, which of the

Pavlova-9 [17]

Answer:

Multiply the top equation by -3 and the bottom equation by 2

Step-by-step explanation:

Given system of equations:

$\begin{cases}4x-2y=7\\3x-3y=15 \end{cases}$

To solve the given system of equations by addition, make one of the variables in both equations sum to zero. To do this, the chosen variable must have the same coefficient, but it should be negative in one equation and positive in the other, so that when the two equations are added together, the variable is eliminated.

To eliminate the variable y:

Multiply the top equation by -3 to make the coefficient of the y variable 6:

$\implies -3(4x-2y=7) \implies -12x+6y=-21$