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Archy [21]
3 years ago
5

What is BC? enter your answer in the box units

Mathematics
2 answers:
Blababa [14]3 years ago
7 0
Since Angles B and C are equal, the sides AB and AC must also be equal, so you can set the equations equal to each other and solve for x.  Then to find the length of BC, x can be plugged into the equation for that side length.

4x+4=6x-14
Add fourteen to each side to get x alone on the right side
4x+4+14=6x-14+14
4x+18=6x
Subtract 4x from each side to get all of the x's on one side of the equation
4x+18-4x=6x-4x
18=2x
Divide each side by two to find the value of one x
18/2=2x/2
9=x
Now that you know x equals 9, plug that into the equation for side length BC:
2x+7
2(9)+7
Multiply 2 by 9 to get rid of the parentheses
18+7
Add to simplify
25

The side of the triangle, BC, equals 25
alisha [4.7K]3 years ago
4 0
The answer is 25 i hope this is right   
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Kevin is a quarterback on the football team.he completed 36 passes during the season.his second-string replacement,Mark complete
anastassius [24]
36 × \frac{2}{9}

Since 9 is a factor of 36 you can reduce the 36 to 4 and the 9 to one 

Then just multiply what is left

4 <span>× 2 = 8

So, Mark completed 8 passes.</span>
3 0
3 years ago
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
Read 2 more answers
8=72<br> 2=6<br> 5=30<br> 9=?<br><br> what is the value of ?
zaharov [31]

Answer:

108?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
My bad here yall go xecveuhjvj3kvcu3kvcurvqjmvhj it said it was too short.
devlian [24]

Answer:

try 420.5

im pretty shure that will work

Step-by-step explanation:

4 0
3 years ago
Show visual model of 1/2 meter long and 3/10 meter wide
Basile [38]
This would be 5x3 :) 

I did my best to keep the line dotted properly.

3 0
3 years ago
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