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3 years ago

Help me pleasee asap !!

Mathematics

1 answer:

Alik [6]3 years ago

3 0

Answer:

F = 110°

I'm not sure, but since no one answered, here it goes...

Step-by-step explanation:

∵ FD = FE (Given in Diagram)

∴ ΔDFE is isosceles , ∴m∠E = m∠D

1 ) 3x + 14 = 5x

14 = 5x - 3x

14 = 2x

14 / 2 = x

7 = x

m∠E = 3*7 + 14 = 35°

m∠D = 5*7 = 35°

m∠F = 180 - (35+35)

m∠F = 110°

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3. Solve the following application of a system of linear equations.

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Answer:

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$y = 10 x$ --- Ruben

Solution to equation:

Time they have the same amount: 14 minutes

Number of cards they have at that time: 140 flashcards

Step-by-step explanation:

Solving (a): Variables and what they represent

The variables to use are x and y

Where x represent the minutes and y represents the number of flashcards in x minutes

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Total number of flashcards (y) in x minutes is:

$y = Existing\ Flashcards + Additional * x$

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$y = 14 + 9 x$

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Total number of flashcards (y) in x minutes is:

$y = Rate * x$

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$10x = 14 + 9x$

Collect Like Terms

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3 years ago