Answer:
17
Step-by-step explanation:
4×10-9= 4
8×10-7=21
21-4=17
Answer:
1/8
Step-by-step explanation:
He would be spending less time because 2/3 is not a full number. Let's make an equation out of the: 2/3(m). Note: 3(2) means 3 times 2 and the m is the amount of miles biked last week. We could insert the number 3 to our equation. 2/3(3). Now if you do it the proper way, it is 2/3(3/1) and if you do the math it is 6/3 aka 2. And 2 is less than 3. So it is less time spent
Answer:
A) irrational because the sum or rational and irrational is always irrational
B) rational the sum of two rationals is always rational
C)irrational the product of a rational and a irrational is always irrational
D) irrational because the product is sometimes rational but sometimes not
Step-by-step explanation:
im not for sure but I think the answer is 9! my reasoning is below,,
Step-by-step explanation:

do the crossing method and it would result in this
(49×x) = (63×7)
after simplifying both sides
49x = 441
divide both sides by 49 and the result will be
x = 9 !!