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2 years ago

2.2x-10=0.2x +14 and -4x+5=x-5

Mathematics

1 answer:

Tcecarenko [31]2 years ago

5 0

Answer:x=12 and x=2

Step-by-step explanation:

2.2x-10=0.2x+14

2.2x-10-(0.2x+14)=0

2.2x-0.2x-14-10=0

2x-24=0

2x=24

x=24/2

x=12

-4x+5=x-5

-4x+5-(x-5)=0

-4x-x+5+5=0

-5x+10=0

-5x=-10

x=-10/-5

x=2

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Read 2 more answers

How many ways can a dance instructor send 4 of her 11 students to a summer dance program?

Sedaia [141]

Answer:

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Step-by-step explanation:

The number of ways can a dance instructor send 4 of her 11 students to summer dance program is C(11 , 4)

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by using formula $n_{C_{r} } = \frac{n!}{(n-r)!r!}$

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$11_{C_{4} } = \frac{11!}{(11-4)!4!}$

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