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My name is Ann [436]
2 years ago
10

A 100-foot cable is cut into two pieces. The first piece is 18 feet longer than the second. How

Mathematics
1 answer:
Archy [21]2 years ago
7 0

Answer:

first cable- 59ft

second cable-41 ft

Step-by-step explanation:

so you have x+18 which is the first cable and x which is the second cable

x+18+x=100

2x+18=100

2x=82

x=41

plug in x

first cable- 59ft

second cable-41 ft

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If the probability of a student spending time reading is 0.10, the probability of spending time watching TV is 0.90 and the prob
joja [24]

Answer:

The probability is 0.97

Step-by-step explanation:

In this question, we are concerned with calculating the probability of a student spending time reading or watching TV.

To calculate this, we simply use a direct mathematical formula.

P( of spending time reading or watching tv) = P(of spending time reading) + P(spending time watching Tv) - P( of spending time watching Tv and reading)

From the question, we identify the probabilities as follows;

P(spending time reading) = 0.1

P(of spending time watching Tv) = 0.9

P(of spending time watching Tv and reading) = 0.03

Now, plugging these values, we have

P( of spending time reading or watching Tv) = 0.9 + 0.1 -0.03

= 1-0.03 = 0.97

6 0
3 years ago
Order the ratios from least to greatest:<br><br> 7:2, 12:4, 20:6, 21:14, 10:5
creativ13 [48]
7:2 least
10:5
12:4
20:6
21:14 greatest
3 0
2 years ago
Read 2 more answers
Need help with this. Hope someone can help
ratelena [41]

First, convert all of the cm measurements to m measurements (so they are all the same unit measurement)

2000 cm = 20 m         800 cm = 8m    

<u>Total Perimeter </u>(Note that circumference of a semi-circle is 2 π r/2 = π r)

Add up the lengths of all of the outside edges. I am going to start on the top and move counter-clockwise:

40 + π (10) + 8 + 25 + 8 + (40 - 25 - 10) + 8 + 10 + 8 + π(10)

= 40 + 10π + 41 + (5) + 26 + 10π

= 112 + 20π

= 112 + 62.8

= 174.8

Answer: 174.8 m

<u>Total Area</u>

Split the picture into 5 sections (2 semi-circles, top rectangle, bottom left rectangle, and bottom right rectangle).  Find the area for each of those sections and then add their areas together to find the total area.

2 semi-circles is 1 Circle: A = π · r²  ⇒ A = π(20/2)² =  π(10)²  = 100π  ≈  314

top rectangle: A = L x w  ⇒  A = 40 x 20  = 800

bottom left rectangle: A = L x w  ⇒  A = 25 x 8  = 200

bottom right rectangle: A = L x w  ⇒  A = 10 x 8  = 80

Total = 314 + 800 + 200 + 80  = 1394

Answer: 1394 m²


3 0
3 years ago
Help me help me help me help me help me help me help me help me help me
kirza4 [7]

Answer:

a) x=7

b) x=4

c) x= 1/9

I hope this helps! Do you need more help?

6 0
2 years ago
Read 2 more answers
What’s the area of a rectangle measuring 13 inches times 12 inches ?
taurus [48]

Answer:

156 square inches

Step-by-step explanation:

We are given the two quantities

Let

length = l = 13 inches

and

Width = w = 12 inches

The formula for the area of rectangle is:

Area=l*w

where l is length and w is width

Putting the values of both that are given

Area = 13*12\\=156

so the area is 156 square inches ..

6 0
3 years ago
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