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Troyanec [42]
2 years ago
14

What is the average cost of cleaning if there were seperate costs of $1,614.23 $2,196.27, $1,560.58 and $1,392.52

Mathematics
2 answers:
kifflom [539]2 years ago
7 0
The average cost should be 1690.90 dollars.

Hope this helps!
cupoosta [38]2 years ago
5 0
Add them up then divide them by 4.
6763.6/4 = 1690.9 average.
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Marco had sales of $28,000. He makes a graduated commission of 4% on the first $10,000, 5% on the next $20,000 and 6% on anythin
Paha777 [63]

Answer:

$1,300

Step-by-step explanation:

commission on the first $10,000

= 4/100 * 10000

= $400

remaining amount

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= $18,000

commission on remaining $18,000

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total commission

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7 0
2 years ago
PLEASE HELP! WILL GIVE 70 POINTS!!
Tresset [83]

Answer:

A=189\ mm^2

Step-by-step explanation:

<u>Surface Areas </u>

Is the sum of all the lateral areas of a given solid. We need to compute the total surface area of the given prism. It has 5 sides, two of them are equal (top and bottom areas) and the rest are rectangles.

Computing the top and bottom areas. They form a right triangle whose legs are 4.5 mm and 6 mm. The area of both triangles is

\displaystyle A_t=2*\frac{b.h}{2}=b.h=(4.5)(6)=27 mm^2

The front area is a rectangle of dimensions 7.7 mm and 9 mm, thus

A_f=b.h=(7.5)(9)=67.5 \ mm^2

The back left area is another rectangle of 4.5 mm by 9 mm

A_l=b.h=(4.5)(9)=40.5  \ mm^2

Finally, the back right area is a rectangle of 6 mm by 9 mm

A_r=b.h=(6)(9)=54 \ mm^2

Thus, the total surface area of the prism is

A=A_t+A_f+A_l+A_r=27+67.5+40.5+54=189\ mm^2

\boxed{A=189\ mm^2}

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Reil [10]

Answer:

7

Step-by-step explanation:

13-6=7 the other line doesn't affect the answer because it isn't negative

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