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2 years ago

5

Clear Plumbing charges a flat fee of $28.50 for a repair trip and $38. 50 per hour for labor. What is the total cost of a repair

job that takes 3.5 hours?

1 answer:

andreev551 [17]2 years ago

3 0

Answer:

163.25

Step-by-step explanation:

38.50x3.5= 134.75

134.75+28.50= 163.25

38.5 per hour which explains 38.5x3.5= 134.75

28.50 is a one time fee so you add that to the total of hours 134.75+ 28.50= 163.25 in total.

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maria [59]

The sequence is defined as

an = 3an - 1 + 7

This means that

a2 = 3(a(2 - 1) + 7

a2 = 3a1 + 7

From the information given ,

a1 = - 4

Thus,

a2 = 3 * - 4 + 7 = - 12 + 7

a2 = - 5

a3 = 3(a(3 - 1) + 7

a3 = 3a2 + 7

a3 = 3 * - 5 + 7 = - 15 + 7

a3 = - 8

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a4 = 3a3 + 7

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3 years ago

For what value of x is the square of the binomial x+1 one hundred and twenty greater than the square of the binomial x-3

My name is Ann [436]

Answer:

<u><em>x = 16</em></u>

Step-by-step explanation:

<em>(x + 1)² = (x - 3)² + 120</em>

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1 year ago

8(y+4)-2(y-1)=70-3y

Lemur [1.5K]

Answer:

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Step-by-step explanation:

We want to solve the equation 8(y+4)-2(y-1)=70-3y

Expand the bracket

$8y+32-2y+2=70-3y$

Group similar terms

$8y-2y+3y=70-32-2$

Simplify

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3 years ago

Write the equation of a circle with center (4,5) and a Circumference = 16 pi

3241004551 [841]

Answer:

The required equation in standard form is $(x-4)^2+(y-5)^2=64$

Step-by-step explanation:

The equation of a circle with center (h,k) an radius, r units is given by the formula;

$(x-h)^2+(y-k)^2=r^2$

The given circle has center (4,5) and the radius can be calculated from the given circumference, which is $C=16\pi$

$2\pi r=16\pi$

$\implies r=8$

We substitute these values into the formula to obtain;

$(x-4)^2+(y-5)^2=8^2$

We simplify to get;

$(x-4)^2+(y-5)^2=64$

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3 years ago

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