Answer:
The Answer is: The First Number is: 37 and the Second Number is: 28.
Step-by-step explanation:
Let f = first number and s = second number.
f = s + 9
f + s = 65
Substitute:
s + 9 + s = 65
2s = 56
s = 28, the second number.
f = 28 + 9 = 37, the first number.
Proof:
37 + 28 = 65
65 = 65
Then:
37 = 28 + 9
37 = 37
Hope this helps! Have an Awesome Day!! :-)
Answer:
x=8
base side of isosceles triangle
y=√{8²+8²}=8√2
Answer:
8
Step-by-step explanation:
Answer:
1.25
Step-by-step explanation:
Answer:
the total number of shingles is 3060
Step-by-step explanation:
Please have a look at the attached photo.
We need to find the total are of the roof.
The are of the trapezoid is:
- A = 1/2 (base 1 + base 2) height
= 1/2 (20+30)*15
= 375 
The are of the triangle:
= 1/2(1.5*10)
= 7.5
=> We need to find the total are of the roof is:
The are of the 2 trapezoids + The are of the 2 triangles
= 375
*2 + 7.5
*2
= 765
Given in the question that, the shingles are 1 foot by 1 foot, but they overlap by 0.75 square foot so the usable area of the shingle is only 0.25
So the total number of shingles is:
765
/ 0.25
= 3060