Answer:
3 3/5 + 1 1/4 = <u>4 17/20</u>
7/8 + 1/12 =<u> 23/24</u>
8/9 - 2/5 = <u>22/45</u>
5 1/4 - 2 2/3 = <u>2 7/12</u>
Step-by-step explanation:
3 3/5 + 1 1/4
First convert into improper fractions
= 18/5 + 5/4
Now find the common denominator
72/20 + 25/20 =
97/20
Now simplify
4 17/20
<u>Next problem:</u>
7/8 + 1/12
find the common denominator
21/24 + 2/24 =
23/24
<u>Next problem:</u>
8/9 - 2/5
find the common denominator
40/45 - 18/45 =
22/45
<u>Next problem:</u>
5 1/4 - 2 2/3
First convert into improper fractions
21/4 - 8/3
find the common denominator
63/12 - 32/12 =
31/12
Now simplify
2 7/12
Answer:
7x - 7
Step-by-step explanation:
Variable: X = the unknown number
2x + (-7) + 5x
= 7x - 7
The answer is 3
This is because to find the volume of X, you just do the side length of X^3, and to find the volume of Y, you do Y^3.
Since both of these values are to the power 3 (X^3 and Y^3), you need to undo it to find the side length of X divided by the side length of Y, and to undo this you need to do something called cube rooting
And the cuberoot of 27=3
Answer:
How many different lines pass through a 3x3-point grid if a line only needs two points?
Step-by-step explanation:
The answer being (93)=9! 3! 6! =9⋅8⋅73⋅2⋅1=84 possible arrangements.