Answer:
Step-by-step explanation:
Add the number of marbles together then you but the number of blue ones first 5 to 25 chances
Similarities
Adding or subtracting a number from both sides.
Multiplying or dividing both sides by a positive number.
Applying an increasing function to both sides.
Simplifying one or both sides.
Differences
Multiplying or dividing both sides by a negative number changes the direction of an inequality. So we cannot multiply or divide both sides by a variable unless we know that the variable is either always positive or always negative. This is not a concern when solving equalities.
When applying a decreasing function to both sides of an inequality, the direction of the inequality changes.
Swapping both sides of an inequality also changes the direction of an inequality. Again we don't have to worry about this with equalities.
The mistakes you have are on both letter’s A and B so I wrote a note for you to look back on^^
Hi, so for A. You need to rewrite 19 as -19
And for B. You need to rewrite 15 as -15
Otherwise everything seems correct
<em>Greetings from Brasil...</em>
Let's solve this inequality.
Let's isolate X. For this, the elements that are with it must be sent to both sides:
- 3 < - 4X + 1 < 13
- 3 - 1 < - 4X < 13 - 1
- 4 < - 4X < 12
<h2>- 3 < X < 1</h2>
<em>important: see annex</em>
Answer:
300
Step-by-step explanation:
70 + 80 = 150
150 x 2 = 300
