Answer:
-9 is your answer for b.
Step-by-step explanation:
Note the equal sign, what you do to one side, you do to the other. Also note the rule that if you have a positive sign & a negative sign next to each other, the resulting sign would be negative:
b + (-17) = -26
b - 17 = -26
Isolate the variable (b). Add 17 to both sides:
b - 17 (+17) = -26 (+17)
b = -26 + 17
Simplify:
b = -26 + 17
b = -9
-9 is your answer for b.
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Remember the rules:
Addition sign + Positive number = Add (Ex: 7 + 7 = 14)
Addition sign + Negative number = Subtract (Ex: 7 + (-7) = 7 - 7 = 0)
Subtraction sign + Positive number = Subtract (Ex: -3 + 4 = 4 - 3 = 1)
Subtraction sign + Subtraction sign = Add (Ex: 5 - (-5) = 5 + 5 = 10)
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Please try to ask seperate questions instead of asking a whole bunch of questions (my opinion)
answers since too much work to show completely
17. x=5, y=1 so the annswer is (5,1)
18. quarters are worth 0.25 and nickes are woth 0.05, represent quarters as q and nickels as n so total cois=n+q and total value=0.25q+0.05n .total= 30 so the equations would be
n+q=200
0.05n+0.25=30
answer is n=100
19. answer x=-1 y=4 so answer is (-1,4)
20. so 12=4r+1b and 8=1b+2r
answer red=2lb blue=4lb
21. the only one in the shaed are is (1,-4)
(1,-4) is the naswer
22. it satisfies only one and is NOT part of the solutin set
23. the answer with 'h<u>></u>20' and '3.50p+8h<u><</u>200 (the third one) is correct
24. so jusr remember it is in (x,y) form so just look for the coorrect answer
answer is the fourth one (0,0), (0,1) , (6,3), (6,13)
25. not sure but min is 2
26. y=2
second one
27. y<-5/4x+3 first one
ANSWERS.
17. first
18. third
19. fourth
20. third
21. fourth
22. third
23.third
24. fourth
25. not sure but min is 2
26. second
27. first
Answer:
√5
Step-by-step explanation:
√(x2 - x1)² + (y2 - y1)²
√[-2 - (-1)]² + [0 - (-2)]²
√(-1)² + (2)²
√1 + 4
√5
Step-by-step explanation:
Let the ratio constant be 'x'
Sum of the ratios=3x+5x=8x
First person gets:-
3/8 x 560 = 210
Second person gets:-
5/8 x 560 = 350
B) 8:45am - 5:15pm
Hope this answers your question!