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4 years ago

What’s 40% as a decimal

Mathematics

1 answer:

11Alexandr11 [23.1K]4 years ago

8 0

Answer:

0.4

Step-by-step explanation:

To convert 40% to decimal, simply divide 40 by 100 as follows: 40 / 100 = 0.4. 40% means 40 per every 100.

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I neeed to solve this equation with elimination

valina [46]

Answer:

The solution to the system of equations be:

x = 3

y = 9

Step-by-step explanation:

Given the system of equations

x + y = 12

-x + 2y = 15

Let us solve the system of equations by elimination

$\begin{bmatrix}x+y=12\\ -x+2y=15\end{bmatrix}$

adding the equations

$-x+2y=15$

$+$

$\underline{x+y=12}$

$3y=27$

solve 3y = 27 for y

$3y=27$

divide both sides by 3

$\frac{3y}{3}=\frac{27}{3}$

Simplify

$y=9$

For x+y=12 plug in y = 9

$x+9=12$

Subtract 9 from both sides

$x+9-9=12-9$

Simplify

$x=3$

Therefore, the solution to the system of equations be:

x = 3

y = 9

7 0

3 years ago

(2.3 x 4 over 10)+(4.16 x 7over 1)

cluponka [151]

Answer:

13.86

Step-by-step explanation: First- (2.3 * 4/10)

which gives you 27/10

Then (4.16 * 7/1)

Which gives you 11.16/1 (basically 11.16)

Then divide 27/10 which gives you 2.7

add 11.16+2.7

which adds up to 13.86

7 0

3 years ago

Read 2 more answers

HELP ASAP!!!!!!!!!!!!!!!!!

Nadusha1986 [10]

Answer:

#3 2 Right, 4 Down & #4 Vertical Compression

8 0

3 years ago

Which is bigger 12.5% or 3/20

Oksanka [162]

Answer:

3/20

Step-by-step explanation:

4 0

3 years ago

What is the distributive property of 48 72?

aksik [14]

You can't use the distributive property on the numbers 48 and 72 because the numbers aren't in an equation.

8 0

4 years ago