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jeyben [28]
3 years ago
12

Somebody help me with this please 30 points ☺️

Mathematics
1 answer:
DaniilM [7]3 years ago
7 0
Answer x1=-2, x2=10

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A satellite television company charges a one-time installation fee and a monthly service charge. The total cost is modeled by th
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<span>(2) y is the total cost, x is the number of months of service, $40 is the installation fee, and $90 is the service charge per month.</span>
y = 40 + 90x

y = total cost
x = number of months of service
40 = one time installation fee
90 = monthly service charge.

Let us assume that the number of months of service is 10 months. then, the total cost would be:

y = 40 + 90(10)
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3 years ago
Karen earns $54.60 for working 6 hours. If the amount she earns varies directly with the
Andrei [34K]

Given:

Karen earns $54.60 for working 6 hours.

Amount she earns varies directly with the  number of hours she works.

She need to work to earn an  additional $260.

To find:

Number of hours she need to work to earn an  additional $260.

Solution:

Let the amount of earnings be A and number of hours be t.

According to question,

A\propto t

A=kt     ...(i)

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Karen earns $54.60 for working 6 hours.

54.60=k(6)

Divide both sides by 6.

\dfrac{54.60}{6}=k

9.1=k

Put k=9.1 in (i).

A=9.1t

Substitute A=260 in the above equation.

260=9.1t

Divide both sides by 9.1.

\dfrac{260}{9.1}=t

28.5714=t

t\approx 29

Therefore, she need to work extra about 29 hours to earn an  additional $260.

3 0
2 years ago
The interior angles of a triangle have measures (2x−5)° , (4x−1)° , and 30°. What is the value of x? Enter your answer in the bo
alexdok [17]
We know that

<span>the sum of the internal angles of a triangle is 180 degrees
</span>so
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6x+24=180
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the answer is
x=26°
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6 The area of a square is 32.5 square inches. Which best represents the length of one side of the square? F 32.5 -16 in. 16 . 5
laiz [17]

Answer:

The answer will be 5.701

Step-by-step explanation:

Find the square root of the area of the square

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What is the speed of the San Andreas fault?
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Answer:

The average rate of movement along the San Andreas Fault is between 30mm and 50mm per year over the last 10 million years. If current rates of movement are maintained Los Angeles will be adjacent to San Francisco in approximately 20 million years.

Step-by-step explanation:

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