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3 years ago

What are 2 equivalent ratios of 15/7

Mathematics

2 answers:

Nuetrik [128]3 years ago

8 0

You have to multiply both top and bottom numbers by the same number so 2 equivalent ones would be 30/14 and 45/21.

klemol [59]3 years ago

6 0

One ratio equivalent to 15/7 is 30/14 (multipled by 2 ) another one is 45/27 (multipled by 3 )

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3 years ago

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Answer:

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When x-y=3 work out the value of y-x

GalinKa [24]

The value of y-x is (-3)

<u>Solution:</u>

Given: The value of x-y=3

To find: The value of y-x

$\bold{x-y=3\rightarrow (1)}$

Let's multiply the equation (1) by (- 1) on both sides,

$\Rightarrow\bold{(x - y)\times(- 1) = 3\times(- 1)}$

$\Rightarrow\bold{-(x-y)=-3}$

On multiplying the sign,

$\Rightarrow\bold{(-x+y)=-3}$

The above equation can also be written as,

$\Rightarrow\bold{y-x=-3\rightarrow \text{(The required equation)}}$

<u>Multiplication of signs:</u>

$\Rightarrow( + )\times( + ) = ( + )$

$\Rightarrow( + )\times( - ) = ( - )$

$\Rightarrow( - )\times( + ) = ( - )$

$\Rightarrow( - )\times( - ) = ( + )$

In simpler terms, when we multiply two integers with the same signs, the result is always positive and when we multiply two integers with different signs, the result is always negative.

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3 years ago

Nara multiplied two whole numbers together to equal a product of 90.

BabaBlast [244]

Answer:

30×3=90 10×9=90 45×2=90 . .

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3 years ago

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