How do I do this equation for my son 7.32 - 1.909
2 answers:
1. line up your numbers
2. notice how there is no number above the 9? Imagine a 0 there. You cannot subtract 9 from 0 so you would change the next number over to one less than before (2 to a 1) and carry a ten over to the 0 making it worth ten.
3. subtract 10 from 9 (getting 1)
4. subtract 1 from 0
5. you cannot take 3 away from 9 so you must once again carry a ten. Change the 7 to a 6 and change the 3 to a 13, then subtract 13 from 9
6. subtract 6 from 1
7. you should be left with 5,411. you are going to want to carry down the decimal to make it 5.411
8. you've successfully subtracted decimals
Hope this is helpful! Also this is in a step bye step form :)
2. notice how there is no number above the 9? Imagine a 0 there. You cannot subtract 9 from 0 so you would change the next number over to one less than before (2 to a 1) and carry a ten over to the 0 making it worth ten.
3. subtract 10 from 9 (getting 1)
4. subtract 1 from 0
5. you cannot take 3 away from 9 so you must once again carry a ten. Change the 7 to a 6 and change the 3 to a 13, then subtract 13 from 9
6. subtract 6 from 1
7. you should be left with 5,411. you are going to want to carry down the decimal to make it 5.411
8. you've successfully subtracted decimals
Hope this is helpful! Also this is in a step bye step form :)
You might be interested in
Answer:
m < A = 60º
m < B = 30º
Step-by-step explanation:
The given sides on this triangle are: 6, , and 12
Any triangle with the angles of 30º - 60º - 90º always has side lengths in this proportion:
x, , 2x
We can line this up with the given sides. If x is 6, then 2x would be 12.
x : : 2x = 6 :
: 12
Angle B is across from 6, the shortest side. That also means that it corresponds to x, or the smallest angle in the proportion, 30º.
m < B = 30º
Solving for < A:
Method 1) Sum of Angles in a Triangle
Since we already know that one angle is right and therefore 90º and m < B is 30º, we can subtract these from the total sum of angle measures in a triangle to get the last angle, < A.
180º - 90º - 30º = 60º
m < A = 60º
Method 2) Using the second part of the proportion
Since m < A is across from the second largest side, we know that it is equal to (
in this question) or 60º in the angle proportion.
This means that m < A = 60º
Let me know if you have any questions!