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GuDViN [60]
3 years ago
8

A firm advertises for workers to address envelopes. Priscilla says she will work 100 hours. Herb will work for 80 hours. If each

can address 10,000 envelopes in the time they work, how long would it take them to address 10,000 envelopes if they work together?
Mathematics
1 answer:
charle [14.2K]3 years ago
4 0
Combined work problems
job/time + job/time = job/ total time

(1/80) + (1/100) = 1/T
(10/800) + (8/800) = 1/T
18/800 = 1/T
800/18 = T
44.44 hrs = T

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Add the following complex numbers: (5-3i)+(10+5i)
serious [3.7K]

Answer:

i = 7.5

Step-by-step explanation:

(5-3i)+(10+5i)

(5+10)+(5i-3i)

15+2i

15=-2i

15/2-i

7.5=i

6 0
3 years ago
I just need the answer helps my computer is on 38 percent
Arte-miy333 [17]
\begin{gathered} \text{  The area of the desk is the area of the big rectangle, plus the area of the little one } \\ A=5\cdot4+2\cdot4 \\ A=20+8 \\ A=28 \\  \\ \text{ The area is 28 square feet} \end{gathered}

4 0
1 year ago
Enter a range of values of x
igomit [66]

Answer:

-5.

Step-by-step explanation:

We know that if two corresponding sides of two triangles are equal, then third sides of the triangles depend on angle between equal sides.

Angle opposite to larger side is larger.

Since, 14 < 15, therefore

2x+10

2x

2x

x          ...(1)

We know that, angle can not not negative.

2x+10>0

2x>-10

x>-5        ...(2)

From (1) and (2), we get

-5

Therefore, the range of values of x is -5.

4 0
3 years ago
Of the people who fished at Clearwater Park today, 48 had a fishing license, 32and did not. Of the people who fished at Mountain
horrorfan [7]

Answer:

The probability that the fisher chosen from Clearwater did not have a license and the fisher chosen from Mountain View had a license is 0.32.

Step-by-step explanation:

Denote the events as follows:

<em>X</em> = a fisher at Clearwater Park had a fishing license

<em>Y</em> = a fisher at Mountain View Park had a fishing license

The two events are independent.

The information provided is:

n (X) = 48

n (X') = 32

n (Y) = 72

n (Y') = 18

Then,

N (X) = n (X) + n (X')

        = 48 + 32

        = 80

N (Y) = n (Y) + n (Y')

        = 72 + 18

        = 90

Compute the probability that the fisher chosen from Clearwater did not have a license and the fisher chosen from Mountain View had a license as follows:

P(X'\cap Y)=P(X')\times P(Y)

                 =\frac{n(X')}{N(X)}\times \frac{n(Y)}{N(Y)} \\\\=\frac{32}{80}\times\frac{72}{90}\\\\=0.32

Thus, the probability that the fisher chosen from Clearwater did not have a license and the fisher chosen from Mountain View had a license is 0.32.

7 0
4 years ago
Simplify |–9.23 – 1.79| – |–7.34 – 2.57|.
vampirchik [111]

Answer:

11.02-9.91= 1.11

Step-by-step explanation:

|-11.02| - |-9.91|  (First solve in absolute)

11.02 - 9.91        (any values outside absolute becomes positive)

1.11=Ans

6 0
3 years ago
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