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mixas84 [53]
4 years ago
6

Can someone please help me ?

Mathematics
1 answer:
qaws [65]4 years ago
3 0

a(8) = 25-3(8)

    = 25-24 = 1

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A wastewater treatment plant receives 20million gallons per day (mgd) of flow. This wastewater has a solid concentration of 384m
xxMikexx [17]

Answer:

64,092.73 pounds

Step-by-step explanation:

1 gallon = 3.78541 liter

1 pound = 453592 mg

In order to obtain the weight of solids that enter the plant each day, simply multiply the wastewater flow by the solids concentration and make the necessary unit adjustments:

W=20,000,000\ gal*384\frac{mg}{L}*\frac{3.78541\ L}{1\ gal}*\frac{1\ lbs}{453592\ mg} \\W=64,092.73\ lbs

64,092.73 pounds of solids enter the plant each day.

8 0
4 years ago
Find the mean and the median of 6 ,5 ,3 ,28, 6 ,4 ,7
kozerog [31]
Mean is 8
you have to add all the numbers and then divide it by the number of elements you have in this case 7
8 0
3 years ago
Please give the answer to all 3!! thank you for your help.
Verizon [17]

Answer

a) PQ = 50

b) PC = 18

PY = 27

c) ZC = 6

ZQ = 18

Explanation

Centroid is a point inside a triangle where all lines drawn from each vertex to the midpoints of opposite side intersect.

Part a

X is the midpoint of PQ. SoPX = XQ.

If PX = 25,

then PQ = 2PX

PQ = 2×25

PQ = 50

Part b

The centroid is alway two thirds away from the vertex.

Also PC = twice CY

PC = 2×9

PC = 18

So, if CY = 9, then PY = 3 × 9

PY = 27

Part c

(i) The centroid is alway two thirds away from the vertex.

If ZC = 12, then CZ =(1/2)QZ

CZ = (1/2) × 12

CZ = 6

(ii) The centroid is alway two thirds away from the vertex.

So, if CZ = 6, then QZ =3 CZ

QZ = 3×6

QZ = 18

7 0
3 years ago
Chen paid $36 for some books after a 25% discount was applied. What was the original price of the books?
Goryan [66]
The answer is $48 for the book
4 0
3 years ago
As the teacher determines the number questions on her upcoming AMDM quiz, she decides that she will give a 20-question quiz. Thi
Serggg [28]

Answer: 68,719,476,736 different ways to answer the quiz.

Step-by-step explanation:

We have 20 questions.

4 of them, have two options (true and false)

and 16 of them have 4 options (a, b, c and d.)

The total number of different ways of answering this quiz is equal to the product of the number of options for each case, then we have:

Combinations = (2^4)*(4^16) = 68,719,476,736 different ways to answer the quiz.

8 0
3 years ago
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