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Natasha_Volkova [10]
3 years ago
8

Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per

Mathematics
2 answers:
TEA [102]3 years ago
8 0

Answer:

Equation : y = 4x + 55.50

x = 1.9 gigabytes

Step-by-step explanation:

Given that:

Flat fee per month = $55.50

Cost per gigabyte = $4

Let,

x be the number of gigabytes.

y be the total cost

y = 4x + 55.50

Lily wants to keep her bill $63.10

63.10 = 4x + 55.50

63.10 - 55.50 = 4x

4x = 7.60

Dividing both sides by 4

\frac{4x}{4} = \frac{7.60}{4}\\x=1.9

Hence,

Equation : y = 4x + 55.50

x = 1.9 gigabytes

LuckyWell [14K]3 years ago
3 0

Answer:

Equation: 4x+55.5=63.1

Answer: x=1.9

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Un jardín rectangular de 50 cm de largo por 34 m de ancho está rodeado por un camino de arena uniforme.Halla la anchura de dicho
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Answer:

5.85 m

Step-by-step explanation:

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By solving the above equation for x we have two solutions:

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Taking the positive value, we have that the width of the sand road is 5.85 m.

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