Go to israel they might have the answers then go to the pyramid in egypt they might have the hirogliphics of that symbol
Yes because if you plug in (-1,2) to each equation you get a true statement.
All you have to do is 100 plus 10 is 110 plus if you need to understand it better you can use base ten blocks use one hundred block and 1 tens block is the same thing. 100 is in one block and 10 is in one tens block. Hope this helped you ( :
Answer:
Step-by-step explanation:
A nickel is worth 5 cents. Converting to dollars, it becomes
5/100 = $0.05
A dime is worth 10 cents. Converting to dollars, it becomes
10/100 = $0.1
Let x represent the number if nickels.
Let y represent the number of dimes.
He has no more than 19 coins. This means that
x + y ≤ 19
He has no less than $1.30 combined. This means that
0.05x + 0.1y ≥ 1.3
If Nolan has 5 nickels, then, substituting x = 5 into x + y ≤ 19, it becomes
5 + y ≤ 19
y ≤ 19 - 5
y ≤ 14
substituting x = 5 into 0.05x + 0.1y ≥ 1.3, it becomes
0.05 × 5 + 0.1y ≥ 1.3
0.25 + 0.1y ≥ 1.3
0.1y ≥ 1.3 - 0.25
0.1y ≥ 1.05
y ≥ 1.05/0.1
y ≥ 10.5
Therefore, all possible values for the number of dimes that he could have would be
10.5 ≤ y ≤ 14