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3 years ago

Simplify:

Mathematics

2 answers:

OlgaM077 [116]3 years ago

8 0

4x + 5 5x 4x + 5 - 5x -x + 5
---------------- - ---------------- = ------------------ = -------------------
6x^2 - x - 12 6x^2 - x - 12 6x^2 - x - 12 6x^2 - x - 12

galina1969 [7]3 years ago

4 0

Answer:

$\frac{-x+5}{6x^2-x-12}}$

Step-by-step explanation:

$\frac{4x+5}{6x^2-x-12} - \frac{5x}{6x^2-x-12}$

To subtract fractions the denomintors should be same

Here the denominator are same

so we combine the numerators and put denominator only once

$\frac{4x+5-5x}{6x^2-x-12}}$

Combine like terms

$\frac{-x+5}{6x^2-x-12}}$

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Solve the System of Equations

soldi70 [24.7K]

Answer:

Equations: $x+y=80\,,\,2x+4y=216\,\,$

number of chickens = 52

number of goats = 28

Step-by-step explanation:

Given: A small ranch has chickens and goats

Total number of heads = 80

Total number of legs = 216

To find: number of chickens and goats

To draw: the graph

Solution:

Let x denotes number of chickens and y denotes number of goats.

According to the question,

$x+y=80\,\,(i)\\2x+4y=216\,\,(ii)$

From (i), put $x=80-y$ in (ii)

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