Answer: the mean is 25
Step-by-step explanation:
to find the mean you basically add all the numbers up and divide them by how many numbers there r. so 20+12+29+15+49= 125 and then you divide 125 by 5 because there are 5 numbers and you get 25
Answer:
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Answer:
Angle A is 168 degrees and angle B is 12 degrees.
Step-by step explanation:
x=14y
14y+y=180
15y=180
y=12
x=168
Answer:
19
Step-by-step explanation:
While it's really easy to just divide, I'm sure your teacher wants an equation so:
1615=85x here x= skittle boxes
1615/85=x In this line you can use divide to cancel out the multiplication, giving you
x=19
Answer:
196
Step-by-step
Step 1: the last number of 38,416 is 6. <u>6 is not a perfect square.</u>
Step 2: because 6 is not a perfect square, split the number up and add each digit together:
3 + 8 + 4 + 1 + 6 =<u> 22</u>
<u>2 + 2 </u>= 4
Step 3:
the digital root of 38,416 is 4.
4 is in the list of digital roots that are always perfect squares. We can conclude that 38,416 could be a perfect square!
Step 4: find all the factors:
1 x 38,416 2 x 19,208 4 x 9,604 7 x 5,488 8 x 4,802 14 x 2,744 16 x 2,401 28 x 1,372 49 x 784 56 x 686 98 x 392 112 x 343 <em><u>196 x 196</u></em>
Underlined above is the factor combination that makes 38,416 a perfect square. A number can only be a perfect square if the product of two exactly the same numbers is equal to the original number.
