Answer:
Estimating is used to help predict the answer to a calculation. We use estimation to make calculations more manageable and to give us an idea of the answer. Estimation is used in the construction industry, for example, when buying materials and planning labour.
Ask a teacher or look it up or use a text book
Answer:
3x - 3y + 15
Step-by-step explanation:
Multiply everything inside the parenthesis by the outside number.
3 times X gives us 3x
3 times -Y gives us -3y
3 times 5 gives us 15
First, reorder the numbers from least to greatest
1.4, 1.6, 1.7, 2.5, 2.5
The median is the middle number
1.7 is your answer
hope this helps
You can do 2 1/2 minus 1 1/8 to get 1 3/8. Your welcome and I hope you get a good grade