Answer:
190.08
Step-by-step explanation:
Answer:
Do you have an image?
Step-by-step explanation:
X = -9, y = -3.4
You can get this by adding through and getting the x's to cancel. Then use the y value to solve for the x.
Ok so 3x3=9 and 4x4=16
So plus the two sums together
9+16=25
When using mental math to solve problems with decimals, it is harder to keep track of what number goes where and where the decimal spot goes as well. Although, with whole numbers in mental math, it is a lot easier to solve since there is no decimal and less numbers (unless you are doing whole number math with a large amount of numbers).
