Algebra! Please help and explain it.

Mathematics

1 answer:

kenny6666 [7]3 years ago

3 0

Answer:

Part of mathematics in which letters and other symbols are used to represent numbers and quantities in formula and equation Algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis

Step-by-step explanation:

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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:

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

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aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

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A light private plane can fly 120 mph in still air. Flying against the wind, the plane can fly 320 miles in the same time it req

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A.<span>640/(120+w)
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Lydia wanted to flip a coin and roll a die at the same time, but she also wondered what the probability of the coin landing on h

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Answer:

incorrect

Step-by-step explanation:

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