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3 years ago

Choose all of the equations that have the solution x = -

Mathematics

1 answer:

padilas [110]3 years ago

4 0

Answer:

x - = answer: x = +

x - = - answerx = - +

x + = - answer x = -

+x = answer x =

x - = - answer x = - +

the only equation is x + = -

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The length of rectangle is 3 cm longer than its breadth. If the perimeter of the rectangle is 54 cm, find its length,in cm

Ilia_Sergeevich [38]

Answer:

Length=15cm

Hope this answer is right!!

Step-by-step explanation:

Length be 3 cm longer than the breadth.

So, x=y+3

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So, length is 15 cm

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2 years ago

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satela [25.4K]

Answer:

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Step-by-step explanation:

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EleoNora [17]

$\huge\underline{\underline{\boxed{\mathbb {SOLUTION:}}}}$

<h3>Given:</h3>

▪ $\longrightarrow \sf{\dfrac{2.1 \times {10}^{5} }{7 \times {10}^{ - 2} } }$

First, rewrite the numerator in such a way that the coefficient 2.1 becomes 21:

$\small\longrightarrow \sf{\dfrac{21 \times {10}^{ - 6} }{7 \times {10}^{2} } }$

Divide the coefficient:

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$\small\longrightarrow \sf{3 \times 10^{-4}}$

$\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}$

$\large \bm{The \: \: quotient \: \: is \: \: 3 \times {10}^{ - 4} .}$

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Step-by-step explanation:

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