The perimeter of the rectangle is 64 cm. find the value of x.

Mathematics

1 answer:

Nesterboy [21]2 years ago

3 0

Is there picture where the x is?
perimeter is the length of the sides. not enough info

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If d is the midpoint of ce, ce=10x+18 and de=7x-1, find x

sashaice [31]

Given that D is the mid point of CE ,

So D will bisect CE, it means the length of DE and CD is equal.

=> DE + CD = CE

As DE and CD are equal,

=> DE + DE = CE

=> 2 DE = CE

Putting values from the question,

=> 2( 7x - 1 ) = 10x + 18

=> 14x - 2 = 10x + 18

=> 14x - 10x = 18 + 2

=> 4x = 20

=> x = 20 / 4

=> x = 10 / 2

=> x = 5

$.$

Therefore, the value of x is 5

7 0

2 years ago

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Which expression is equivalent to Negative 28 x y 35 y? 7 y (Negative 4 x y 5 y) 7 x (negative 4 x 5 y) 7 x (negative 4 y 5 y) 7

GREYUIT [131]

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The expression which is equivalent to the given expression is given by

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<h3>What are equivalent expressions?</h3>

Those expressions who might look different but their simplified forms are same expressions are called equivalent expressions.

<h3>What is distributive property of multiplication over addition?</h3>

Suppose a, b and c are three numbers. Then we have:

$a(b + c) = a \times b + a \times c$

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<h3>Using the above property and the fact that 28 and 35 are multiples of 7 to get the equivalent expression</h3>

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