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Aleonysh [2.5K]
2 years ago
14

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS

Mathematics
1 answer:
Snezhnost [94]2 years ago
6 0

Answer:

okay my Guy you pick DC and that is the right answer

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In a study of bat migration habits, 240 male bats and 160 female bats have been tagged. If 100 more female bats are tagged, how
valentinak56 [21]
Remark 
The way you have to set this up is to take the new number for the males and put it over the total for the males and females. The new number for the males / total = 3/5.

Step One
Find the total number of females
100 + 160 = 260 when 100 females have been added to the study.

Step Two 
Find the number of males
The total number of males = 240 + x where x is the number of males to be added.

Step Three
Find the total for both
260 + 240 + x = Total
500 + x = Total.

Step Four
Find the ratio of males to total
(240 + x) / (500 + x) = 3/5   

Step Five
Cross multiply and solve
(240 + x)*5 = (500+x)*3
1200 + 5x = 1500 + 3x    Subtract 1200 from both sides.
5x = 1500 - 1200 + 3x     
5x = 300 + 3x                   Subtract 3x from both sides.
5x - 3x = 300
2x = 300                          Divide by 2 
x = 300  / 2
x = 150

Check
(240 + 150 ) / (500 + 150) = ? 3/5
390 / 650 = ? 3/5
39/65 = ? 3/5  Divide the top and bottom on the left by 13
3/5 = 3/5 and it checks. 

7 0
3 years ago
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What is the square root of 75m
umka2103 [35]

Answer:

the square root of 75 is either \sqrt75 or 8.66

Step-by-step explanation:

6 0
3 years ago
(2,4) y=2/5x - 9 write an equations perpendicular to the line represented by y=2/5x-9
MA_775_DIABLO [31]

Answer:

the answer that 9-(2,4)

Step-by-step explanation:

7 0
3 years ago
The figure shows the dimensions of a room in which receptions are held. the room is being carpeted. The three semi-circular part
Mice21 [21]
A=LW so the 18m*12m= 216 m^2
4 0
3 years ago
Point C is the center of the circle. What is the measure of angle ACB if arc ADB measures 250 degrees?
NeX [460]

Around the outside of a circle measures 360°. If arc ADB measures 250°, then arc AB measures 360-250 which is 110°. Because point C is the center of the circle, then angle ACB is a central angle. By definition of an arc intercepted by an angle, they are the exact same measure in degrees. So if arc AB = 110, then the measure of the angle ACB also measures 110.

4 0
3 years ago
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