Determine the perimeter

Mathematics

1 answer:

oee [108]3 years ago

5 0

Answer:13.8

Step-by-step explanation:

Just add 6.3 4 and 3.5

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The digit 5 in which number represents a value of 0.5?

Mama L [17]

it's called 'tenths' and there's a thing that whatever goes on that side has no 'ones' it just starts with tens and it's ALWAYS followed by 'ths' after every digit

like hundredths or thousandths .

hope you understood it well

5 0

3 years ago

3/5x + 1/4y = -1/2 in standard form

Soloha48 [4]

Answer:

$\large\boxed{12x+4y=-10}$

Step-by-step explanation:

The standard form:

$Ax+By=C$

A, B and C are the integer.

We have:

$\dfrac{3}{5}x+\dfrac{1}{4}y=-\dfrac{1}{2}$

Find the common denomintaor of given fractions.

We have 5, 4 and 2. The common denominator of 2, 4 and 5 is 20.

20 = 2 · 10 = 4 · 5 = 5 · 4

Thereofre multiply both sides by 20:

$20\!\!\!\!\!\diagup^4\cdot\dfrac{3}{5\!\!\!\!\diagup_1}x+20\!\!\!\!\!\diagup^4\cdot\dfrac{1}{4\!\!\!\!\diagup_1}y=20\!\!\!\!\!\diagup^{10}\cdot\left(-\dfrac{1}{2\!\!\!\!\diagup_1}\right)\\\\(4)(3x)+(5)(1y)=(10)(-1)\\\\12x+4y=-10$