Answer:
x=-3
Step-by-step explanation:
6x - 2 =7x +1
6x - 7x =1+2
-x=3
x=-3
6x - 6x - 2=7x - 6x +1
0-2=x+1
-2=x+1
x=-2-1
x=-3
Answer:
1= 10
2= -5
3= 1
Step-by-step explanation:
Keep change opposite is what I use for number 1
For 2 just subtract 8 - 3
5 will be the answer and since 8 was negative it will be negative 5 cause 8 is the bigger number.
for 3
6-5 is simple.
Answer:
10 incorrect answers
Step-by-step explanation:
Correct answer = +3
Incorrect answer = - 1
Mark scored = 20
Number of correct answers = 10
Let:
Incorrect answers = y
Hence, we can fashion out the expression for total score :
(Number of correct answers * score per Correct answer + number of incorrect * score per incorrect) = total score
(10 * 3) + (y * - 1) = 20
30 - y = 20
-y = 20 - 30
-y = - 10
y = 10
10 incorrect answers
Answer:
I think it's D. The independent variable is the length of the race. The dependent variable is the time.
Step-by-step explanation:
Here I'm quoting user kaylaj051903 "because an independent variable is something that is constant and does not change throughout the problem. The dependent variable depends on the independent variable. The race is a 5K race. That will not change. What will change is how long it takes Stephanie to run the 5K race."
X/X+5=-2
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