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3 years ago

14

A professional carpet cleaner service charges $30 plus $25.50 per hour to come to your home. If your total bill from this compan

y is $119.25 before taxes, how many hours were you charged?

1 answer:

andrew-mc [135]3 years ago

4 0

Answer:

3.5 hours

Step-by-step explanation:

$30 + 25.50x = 119.25 \\ 25.50x = 89.25 \\ x = 3.5$

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Daniel [21]

1) C. <u>19.4
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A survey of the readers of three daily news papers; Nation, standard and Kenya times showed the following results. i) A total of

daser333 [38]

N(N ∩ S ∩ K) = 10
n(ξ) = 250
n(S ∪ K) = 15 - 10 = 5
n(N ∪ S) = 20 - 10 = 10
n(N ∪ K) = 30 - 10 = 20
n(S) = 50 - 10 - 5 - 10 = 25
n(K) = 55 - 20 - 5 - 10 = 20
n(N) = 100 - 10 - 20 - 10 = 60

n(N ∪ S ∪ K) = 10 + 5 + 10 + 20 + 25 + 20 + 60 = 150

Therefore, n(N ∪ S ∪ K)' = 250 - 150 = 100

Therefore, 100 million people do not read any of the three papers.

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3 years ago

I need help please don't know this

SashulF [63]

Answer:

9 is the right answer

Step-by-step explanation:

I. If c = - 4 and d = 10

then $\frac{1}{4}(-4^{3} + 10^{2} )$

= $\frac{1}{4}(-64 + 100)$

= $\frac{1}{4}(36)$

= 9

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Determine whether the point (1, 5) is a solution to the system of equations. Explain your reasoning in complete sentences.

Ivanshal [37]

The solution to any system graphically can be found where the 2 graphs intersect. These two graphs intersect at the point (0, 2).

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3 years ago

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Solve for y:<br> x + 2y = -8<br><br> y=-1/2x+4<br> y=-1/2x-4<br> y=-2x - 4<br> y=1/2x-4

adelina 88 [10]

Answer:

x + 2y = -8 = y = -4 - 1/2x

y= -1/2x + 4 = y = 4

y= -1/2x - 4 = y = -4

y=-2x - 4 = y = -4

y=1/2x-4 = y = -4

Step-by-step explanation:

(x + 2y = -8 = y = -4 - 1/2x)

$x+2y=-8\\2y=-8-x\\y=-4-\frac{1}{2}x\\$

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3 years ago