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2 years ago

Fill in the blank. I NEED AN ANSWER FASTTT

Mathematics

1 answer:

Yuri [45]2 years ago

5 0

Answer:

It is =

Step-by-step explanation:

Because (6 x 1 = 6 ) + 1 x 1/100 = 6.1

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Y is inversely proportional to x.

Inessa [10]

Answer:

1. $xy = 63$

2. $y = 3$

Step-by-step explanation:

Given

Variation: inverse Proportion

y = 7, x = 9

Required

- Write an equation connecting y and x

- Find y when x = 21

Given that thee variation is inversely proportional;

This implies that

$y\ \alpha\ \frac{1}{x}$

Convert variation to equation

$y\ = \frac{k}{x}$ ----------- Equation 1

Where k is the constant of variation

Substitute 7 for y and 9 for x in equation 1

$7 = \frac{k}{9}$

Multiply both sides by 9

$9 * 7 = 9 * \frac{k}{9}$

$63 = k$

Substitute 63 for k in equation 1

$y = \frac{63}{x}$

Multiply both sides by x

$x * y = \frac{63}{x} * x$

$xy = 63$

Hence, the equation connecting x and y is $xy = 63$

Solving for when x = 21

Substitute 21 for x in the above equation

$21 * y = 63$

Divide both sides by 21

$\frac{21 * y}{21} = \frac{63}{21}$

$y = 3$

4 0

3 years ago

36 in the ratio of 2:3:4

Viefleur [7K]

The ratio of three numbers are 2:3:4.

Let the rational between the three numbers be x, hence the three numbers be 2x, 3x,and 4x.

If their average is 36, what are the numbers

We know the average = sum of the numbers / no. Of numbers.

(2x+3x+4x) /3=36

9x/ 3= 36

3x =36

X= 36/ 3

X= 12

The rational is 12

Answer the three number are 24, 36, and 48.

HOPE THIS HELP!!

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2 years ago

PLEASE HELP!! GRADE 7 MATHEMATICS!!!

Rzqust [24]

The area of 3x5 face is used 4 times rather then twice
S=94in ^2

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We described numbers in this lesson using both powers of 10 and using standard decimal value. For example, the speed of light th

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2 years ago