Answer:
1 tens 3 ones
Step-by-step explanation:
All you do is count the numbers in the place value chart.
Since 31-18=13, all you do is count 10+1+1+1=13.
Standard I believe tell me if I’m wrong
Answer:
56
Step-by-step explanation:
The mean is the average number of a data set.
To find the mean:
First, add all the numbers in the data set:
30 + 45 + 45 + 70 + 90 = 280
Next, divide the sum (280) by 5 (amount of values):
280 / 5 = 56
56 represents the mean of your data set.
Answer:
x=50
Step-by-step explanation:
1) Rewrite the problem as an equation: (x will be "a number")
9x+6=456
2) Subtract 6 from both sides:
9x=450
3) Divide both sides by 9:
x=50
Answer:
x=7
Step-by-step explanation:
Have a great day :)
