Formula to find the slope (y1-y2)/(x1-x2)
if (x1,y1) is (13,2) and (x2,y2) is (15,14)
(2-14)/(13-15)=6
If 6a = 5b then the ratio of 2a : 7b is 5 : 21
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Solution:</u></h3>
Given that 6a = 5b
We have to find the ratio of 2a : 7b
Let us first solve the given expression and find values of a and b
6a = 5b
![a = \frac{5b}{6}\\\\\frac{a}{b} = \frac{5}{6}](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7B5b%7D%7B6%7D%5C%5C%5C%5C%5Cfrac%7Ba%7D%7Bb%7D%20%3D%20%5Cfrac%7B5%7D%7B6%7D)
So we have found that a = 5 and b = 6
<em><u>Finding ratio of 2a : 7b</u></em>
2a : 7b = 2(5) : 7(6)
2a : 7b = 10 : 42
On simplifying to lowest terms,
2a : 7b = 5 : 21
Thus the ratio of 2a : 7b is 5 : 21
Let the width be 2w. Then the lenght is 5w. So:
(2w)(5w)=490
10w²=490
w²=49
w=±7
So, 2w=width=14 in; and 5w=length=35 in
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-160
Since -(20x8) the answer would be -160
Hey there!
A dolphin swims 40 miles per hour. In feet, this is 211,200 because there’s 5,280 feet in a mile. Divide 211,200 by 60 to get 3,520. The dolphin travels 3520 feet a minute.
I hope this helps!