Answer:
2) -2/3
4) 17/5
Step-by-step explanation:
2)-4/3= 2g
-4=6g
g=-2/3
4) 9=5r - 8
-5r=-17
r=17/5
Answer:
84%
Step-by-step explanation:
Henry completed a total of 50 questions. From these 50 he predicted 36 were right and this means he also predicted that 14 were wrong (50-36 = 14). From these predictions 5 out of 36 from the ones that he predicted were right were actually wrong and 3 of the 14 questions (14-11 = 3) he predicted were wrong were actually right. Meaning in total he wrongly predicted 8 questions which means he predicted 42 correctly ...
42 / 50 = 0.84 = 84%
Therefore, Henry's prediction accuracy is 84%
Answer:
20+4+0.02
Step-by-step explanation:
- You break down each number
- <em>Then you need to "add" them </em>
- <em>Then finally you add them together to make sure you have the right answer</em>
X+2(2x-4)=12. (substitute)
x+4x-8=12. (distributive prop)
5x-8=12 (combine like terms)
5x=20 (add 8 to both sides of equation)
x=4 (dividing)
