Answer:
1. 2x-20
2. 4(x+3)
Step-by-step explanation:
The answer is going to be 1.04. hope that helped
First, problem, you need to make sure that all of the denominators are the same. Then, you subtract the numerators as you would a normal math equation
¹/9
Step-by-step explanation:
Of the total marbles (4 + 2 + 3) = 9 , the number of blue marbles is 2. The probability of drawing out a blue marble is therefore ²/9
A coin has two sides – therefor two possibilities in a toss (heads or tails). The probability of tossing either is therefore ½.
We MULTIPLY two probabilities when both conditions need to be satisfied at the same time. Therefore;
²/9 * ½ = ²/18
= ¹/9
Answer: ( d.)She is giving the students time to practice to promote their metacognition.
Step-by-step explanation:
Metacognition can be explained as one’s ability to use previous knowledge to plan a method for approaching a learning challenge, take adequate steps to solve the problem, look back on and evaluate gotten results, and modify one’s approach to the next challenge. It helps learners to be able to select the right cognitive tool for each task and plays a vital role in successful learning.
The teacher in the above question is only trying to improve her student's awareness of their own knowledge.
She is also building the students ability to think in order to solve future challenges they would face in mathematics.
