Answer:
Step-by-step explanation:
4. 10x + 30 = 90
10x = 60
x = 6
complementary
5. 4x + 40 + 3x = 180
7x + 40 = 180
7x = 140
x = 20
supplementary
The mystery number is 8 or in decimal is 8538.01. hope its correct.
Answer:
1440 Years
Step-by-step explanation:
hope it helps
Take the area of the rectangle as a whole and subtract the triangle piece.
We know the dimensions of the triangle are 3x4 so you can multiply it out using the formula to find the triangle's area to get 6.
Then you calculate the area of the whole rectangle. 10x12=120.
Finally subtract the triangle from the rectangle. 120-6=114.
The Area of the deck is 114.
Answer:
$9 Per Hour
Step-by-step explanation: If we split 9 into 1/3 we can get 3 so if we say 9x3 is 27 then add the 3 we get $30
