U can use the second last one
X + 90 = 2x + 40
Answer:
D
Step-by-step explanation:
altitude is always perpendicular to base
You want one of the values in the ratio to be one for a unit rate. First, write out the ratio. It is 70 miles/2 hours. It's better not to include decimal numbers when you write a ratio when you can, so we're going to make the hours the unit rate. To make 2 -> 1 hour, divide both sides of the ratio by 2. 70/2 = 35.
The unit rate is 35 mi./hr.
Hope that helped you.
Answer:
x=8 and y=2
Step-by-step explanation:
1512 I believe! :) I would double all the dimensions first, then multiply them all together.
