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2 years ago

Help me on this question

Mathematics

2 answers:

NeX [460]2 years ago

4 0

Answer:

$x = 18$

Step-by-step explanation:

Vertically Opposite Angles are equal..

so,

$x + 54 = 4x \\ 54 = 4x - x \\ 54 = 3x \\ \frac{54}{3} = \frac{3x}{3} \\ 18 = x$

Anna35 [415]2 years ago

4 0

Answer:

$x + 54 \: and \: 4x \: are \: opposite \: so \\ x + 54 = 4x \\ x \: terms \: togather \\ 4x - x = 54 \\ 3x = 54 \\ x = \frac{54}{3} \\x = 18 \\ thank \: you$

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The Frill family and the Smith family go to the movies.

Sati [7]

Step-by-step explanation:

Let a be the price of 1 adult ticket.

Let c be the price of 1 child ticket.

given,

$6a + 2c = 124$

as equation 1,

and

$3a + 5c = 100$

as equation 2.

Now we will solve for a and c using elimination method of simultaneous equations.

Now we multiply equation 2 by 2 to eliminate a and solve for c.

$3a \times 2 + 5c \times 2 = 100 \times 2 \\ 6a + 10c = 200$

This new equation will be equation 3.

Now we will use equation 1 - equation 3 to eliminate a and solve for c.

$(6a - 6a) + (2c - 10c) = 124 - 200 \\ 0 + ( - 8c) = - 76 \\ - 8c = - 76 \\ c = - 76 \div - 8 \\ = 9.5$

Now substitute c into equation 2.

$3a + 5(9.5) = 100 \\ 3a + 47.5 = 100 \\ 3a = 100 - 47.5 \\ 3a = 52.5 \\ a = 52.5 \div 3 \\ = 17.5$

Therefore one adult ticket will cost $17.50 and one child ticket will cost $9.50.

7 0

2 years ago

What is the aswer pls im desperate

wel

Use PEMDAS ...........

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3 years ago

8. f(n) = f(n-1) + 1; f(1) =<br>win

DanielleElmas [232]

Answer:

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Step-by-step explanation:

we are using BODMAS

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3 years ago

At Gwen’s bakery over the course of a year she sold 78 cakes for $78 a cake. At the end of the year she determined that for each

cluponka [151]

Answer:

Step-by-step explanation:

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faust18 [17]

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