Answer: 19.8 ft
Step-by-step explanation:
Use the Pythagorean Theorem formula to solve for how high the top of the ladder reach.
The formula says a^2 + b^2 = c^2
Where a and b are the two legs and C is the hypotenuse.
In this situation, the hypotenuse will be length of the ladder , and either a or b will be the length of the ladder from the building or the length of how long the ladder.
a will be 3 , and c will be 20. Input in the values into the formula and solve for b.
3^2 + b^2 = 20^2
9 + b^2 = 400
-9 -9
b^2 = 391
b = 
b = 19.77371 round to the nearest tenth is , 19.8
1.) 6x-8y=18, 2x+8y=6 → Multiplication property of equality
2.) 8x=24 → Addition property of equality
3.) x=3 → Division property of equality
4.) 3(3)-4y=9 → Substitution property of equality
5.) 9-4y=9 → Simplify
6.) -4y=0 → Subtraction property of equality
7.) y=0 → Division property of equality
Answer:
35 miles
Step-by-step explanation:
To get the total number of miles, you add up the value of the X's to get 35 miles. Have a great day!
Answer:
480
Step-by-step explanation:
there are 60 minutes in an hour, so multiply 8x60=480
Answer:
A).
650 + 35w> 825 + 15w
Step-by-step explanation:
Molly already has $650 set aside and adds $35 each week.
Lynn already has $825 set aside but adds only $15 each week
Let the number of weeks Molly's savings exceeds Lynn's savings be x. for Molly's savings= $650 + $35x
For Lynn savings = $825 + $15x
Fot Molly's savings to be greater than Lynn savings,then
$650 + $35x> $825 + $15x
