Lori buys 3 invitations as 20-11 is 9 and 9 divided by 3 is 3 which therefore means she bought 3 invitations for 9 dollars excluding sales tax of course
AB=10
The triangles are proportional. DC*2=AC. 12*2=24.
So DE*2=AB. 5*2=10
(f+g)(x) = 4x^2+1+x^2-5 = 5x^2-4 l, so D.
To solve this, let's set up a ratio of Ali's dog's weight to Ali's cat's weight. This will be:
8:1
So we need to find two numbers that add up to 54 that follow this ratio.
This is simple! Add 1 and 8 together to get nine total units. Now we can divide 54 by nine, which gives us 6. Multiply this by eight (from the ratio) and you get 48.
The answer is 48 pounds!
Hope this helps :)
20+19=39
20 is 1 more than 19 making 19 1-less than 20. The difference is 1 between the two numbers