Answer:
Step-by-step explanation:
Hello,
Let's not a and b the two numbers.
<em>One number is seven less than a second number.</em>
(1) b = a - 7
<em>Five times the first is 2 more than 6 times the second. </em>
(2) 5a = 2 + 6b
(2)+5*(1) gives
5a + 5b = 2 + 6b + 5a - 35
b = 35 - 2 = 33
a = 40
The value of the first number is 
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
It's times 5 the number; next two numbers would be 625 & 3,125
Answer is 10.5 miles
I used Pythagorean theory to solve for the unknown distance from the waterfall to lookout point.
a^2 + b^2 = c^2
2^2 + 4^2 = c^2
20 = c^2
Take square root of both sides
4.47 = c
Rounded to 4.5 miles
Add 4 miles and 2 miles and 4.5 miles
10.5 miles total
I think it's A. One way you can identify if they are parallel is if both of the slopes are the same (also both have to have the same signs).
