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abruzzese [7]
3 years ago
14

Does anyone know how to do 15 and 16?????

Mathematics
2 answers:
Julli [10]3 years ago
3 0
This is how you answer number 15 and 16

Ber [7]3 years ago
3 0
ANSWERS- 15.) the second part would be 46.25 i don’t know the first part so sorry though

16.) x=33.3 and 3x+10=57.3


Idk if any of these are right though I haven’t done this in a long time sorry if I made mistakes.
STEPS-
You would find out the measure of the type of line which would be 180 since it’s straight. Then you would solve it algebraically so you would do 4x-5=180, add 5 to both sides (5 would cancel out & 180 would be 185) the divide 185 by 4x and you would get x = 46.25. Sorry I don’t know the other equation for 15.

For 16.) you would turn the equation into 3x-10=90 since it’s a 90 degree angle. Add 10 to both sides so that they cancel each other out then add 10 to 90 and then you should get 100. Now your equation should look like this 3x=100. Next do 100➗3x= 33.3. Now your answer is x=33.3 and the second part would be 90-33.3= 57.3.






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The day after the school election it was reported that Danny won the election for class president. For every three votes his opp
oee [108]

Answer:

832 votes were cast

Step-by-step explanation:

 

Danny received  =          5 of every 8 votes

Opponent received  =     3 of every 8 votes

 

Let V stand for the total number of votes cast.

 

The opponent's 3/8 of the votes was 312  so  (3/8) times V  = 312

 

(3/8)(V)  =  312

 

V  =  (312)/(3/8)              ( i.e., 312 divided by 3/8 )

 

To divide by a fraction, you invert the divisor and multiply

 

V  = (312) x (8/3)  =  2496/8  =  832 total votes  

7 0
3 years ago
Read 2 more answers
I know the answer is C. but I need to know how to solve it!
otez555 [7]
Yes you are right it's C)
Notice  that f(-2) = (-2)³ +2( - 2)² + 4(-2) + 8 =0
Then x³+2x²+4x+8 is divisible by (x+2)
Perform this division & you will get:

x³+2x²+4x+8 = (x+2)(x²+4)
 The root of (x+2) is the value that render it nil, that is x=-2
  The root of (x²+4) are imaginary (not real) because
  x²+4 =0 ==> x² = -4 & x=√-4 or x= 2i (nor real).
Hope you understood the reasoning



3 0
3 years ago
What is the slope of a line that is perpendicular to the line y=4x+8
DiKsa [7]

Answer:

-1/4

Step-by-step explanation:

y = 4x + 8

- the slope of this line = 4

The slope of a line perpendicular to it will be - 1/ 4

8 0
4 years ago
What are the solutions to the equation x- 7/x = 6 ?
OLEGan [10]

Answer:none of these.

Try to substitute any of the given values for x and the result is false

Step-by-step explanation:

Try x=1. 1-7 -6. Divide that by 1 and you get -6 = 6. False!

To solve the given equation, multiply sides by x to cancel the denominator. You get x-7 = 6x then subtract x from both sides to get -7=5x. Divide both sides by 5 to get x= -7/5

But if the original equation has an x^2 somewhere, there will be a different set of solutions.

7 0
4 years ago
Read 2 more answers
Ered
Pavlova-9 [17]

Answer: C:800.B:1200.T:1600

Step-by-step explanation: If the ratio is proportional to the time spent on the marketing competition, then we can add the hours up: 4+6+8=18. Total amount divded by total hours -> 3600/18=200. So each hour worked is 200 dollars. Christine worked 4 hours, 4*200=800, Bianca worked 6 hours, 6*200=1,200, and Travis worked 8 hours, 8*200=1,600.

6 0
3 years ago
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