Answer:
The height is 16.
Step-by-step explanation: If you add 8+8 you will notice that it is equal to 16 because 8 is a missing number.
<h3>
Answer:</h3>
2xy
<h3>
Step-by-step explanation:</h3>
GCF stands for the greatest common factor.
Finding All Factors
To find the GCF you need to find the factors of each term. First, find the factors of the coefficients.
- The factors of 18 include: 1, 2, 3, 6, 9 and 18
- The factors of 32 include: 1, 2, 4, 8, 16, and 32
Next, lay out the variables that are factors.
- The variables of 18xy are x and y.
- The variables of 32xyz are x, y, and z.
Remember that variables count as factors
Greatest Common Factor
Now that we have all of the factors we can find the GCF. The GCF will be the largest number and the most variables that are a factor of both terms.
In this case, the largest factor of 18 and 32 is 2. Since both x and y are factors of both terms, the GCF is 2xy.
Mrs Kennedy is buying pencils for 315 students.
The pencils are sold in boxes of 10.
Therefore the number of pencils she needs to buy should be a multiple of 10, so that she can buy boxes of 10 pencils each.
number of students are 315 but 315 is not a multiple of 10
so we have to round off 315 to the nearest ten, that's 320.
so then she has to buy 320 pencils
number of boxes she needs - 320 / 10 = 32 boxes of pencils
she only needs pencils for 315 students so she will have 5 extra pencils
she will have to buy 32 boxes
3 should be added to the tiles
