Answer:
81
Step-by-step explanation:
Assuming the ramp is against a wall or building at a 90 degree angle, then the 3 angles formed by the triangle within the ramp and wall are 9 +90 + x = 180 so 99 + x = 180 so x=81
Answer:
58 in^2
Step-by-step explanation:
The area of one face of the 3" cube is (3 in)^2 = 9 in^2. Then the 6 faces of that will have an area of ...
6·9 in^2 = 54 in^2
The area of the top of the paperweight is unaffected by the area of the added cube: the area the smaller cube covers is exactly the same as its exposed top area. So, the net effect of the added 1" cube is to increase the total area by that cube's lateral area: 4 faces at 1 in^2 for each face, a total of 4 in^2.
Then the total surface area of the paperweight is ...
54 in^2 + 4 in^2 = 58 in^2
Let's first find out how many miles they can drive in ONE hour. 150/3=50, so they drive 50 miles per hour. So, to drive 400 miles, we need to divide the number of miles by how much they drive per hour to see how long it will take. 400/50=8, so it will take the Donatones 8 hours.
Answer: 8 hours
Answer:B
Step-by-step explanation:
I use a calculator and multiplied all the numbers then found what = 6