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You are correct for 18a through 18c. Nice work.
18a. True (think of it as 21 is less than 27)
18b. False; 0.4 is the same as 0.40
18c. True. Three dollars is much greater than 20 cents
18d. False. 1.9 is the same as 1.90 and can't be smaller than itself
18e. False. The two sides are completely diferrent numbers.
18f. True. The value 6.2 is the same as 6.20
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For problem 19, you have to make the denominators the same. So multiply top and bottom of the first fraction by 10 to go from 4/10 to 40/100
If 40 is in the first box, then 40+40 = 80 is the final numerator. If this is over 100, then 80/100 = 8/10 meaning that 10 goes in the other box.
3/8 ÷ 3/4
4/8 = 1/2
the sloth moves 1/2 a foot per minute
For this case:
D.-) The system has infinitely many solutions.
<h2>
Explanation:</h2>
Remember that you have to write complete questions in order to find exact and good answers. In this exercise, the system is missing. However, I'll provide the following system:
So we have two equations and two variables. Our first equation is:
And the second equation is:
When graphing these two lines, we can get the following possibilities:
- They have a unique solution. This means the graphs intersect at a single point.
- They have infinitely many solutions. This implies the lines are basically the same.
- They have no solution. This implies they are parallel but with different y-intersect.
By dividing equation (2) by 2 we get:
So we get the same equation as line (1), so <em>the conclusion is that they have infinitely many solutions.</em>
<h2>Learn more:</h2>
Infinitely many solutions: brainly.com/question/13771057
#LearnWithBrainly
1 is 110. 2 is 65 and 3 is 35. You have to double 55 for the first question. For 2 you divide 2 from 130. And the third one shows the angle.