The answer is 30
2 * 15 = 30
5 * 6 = 30
30 is between 24 and 34
<span>Is it 0.262626...?
repeating decimals you have to write at least two of the repeats so it is obvious what is repeating.
1000x = 262.62626...
10x = 2.62626...
1000x - 10x = 260
990x = 260
x = 26/99</span>
Answer:
y= 6x - 5
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
I counted any number that had the tens place <u>80</u>
Given:
t1 = 3.6 h
t2 = 4.5 h
x = speed of boat
y = speed of water
Required:
a) Expression of distance traveled with moving water with 3.6h
Expression of distance traveled with moving water with 4.5h
b) Solve for y
c) Percent of boat's speed is the water current
Solution:
Working formula: distance = velocity*time
a) For travelling downstream, we get the equation
d = (x +y)*3.6
For travelling upstream, we get the equation
d = (x-y)*4.5
b) Setting the distance as equal for travelling upstream or downstream, we arrive at the equation of
(x+y)*3.6 = (x-y)*4.5
3.6x + 3.6y = 4.5x - 4.5y
8.1y =0.9x
y = x/9
c) percentage = 1/9*100% = 11.1%
<em>ANSWERS: a) d = (x+y)*36; d = (x-y)*4.5
</em> <em>b) y = x/9
</em> <em>c) 11.1%</em>
