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valentinak56 [21]
2 years ago
15

What is .4 as a fraction

Mathematics
2 answers:
Dmitriy789 [7]2 years ago
7 0
2/5 is .4 as a fraction
prohojiy [21]2 years ago
4 0

Answer:

4/10 = 2/5

Step-by-step explanation:

To change the decimal .4 into a fraction, we can put the 4 over 10 because the 4 is in the tenths place. Right now, we have 4/10. We can reduce this fraction (by dividing the numerator and denominator by 2) to 2/5.

I hope this helped and please mark me as brainliest!

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(-6,8); perpendicular to y = -3/2x -1
UNO [17]

Answer:

y =  \frac{2}{3} x + 12

Step-by-step explanation:

y =  -  \frac{3}{2} x - 1

The gradient of a line is the coefficient of x when the equation of the line is written in the form of y=mx+c.

Thus, gradient of given line=-  \frac{3}{2}.

The product of the gradients of perpendicular lines is -1.

(Gradient of line)(-3/2)= -1

Gradient of line

- 1 \div ( -  \frac{3}{2} ) \\  =  - 1( -  \frac{2}{3} )  \\  =  \frac{2}{3}

Substitute m=\frac{2}{3} into y=mx+c:

y =  \frac{2}{3} x + c

To find the value of c, substitute a pair of coordinates.

When x= -6, y= 8,

8 =  \frac{2}{3} ( - 6) + c \\  \\ 8 =  - 4 + c \\ c = 8 + 4 \\ c = 12

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