4(2x +5) = (8x + 20)
8x =20 is an equivalent expression
Answer:
All polygons have straight lines
Step-by-step explanation:
Answer:
Blank 1: 40
Blank 2: 10
Step-by-step explanation:
You can start by representing the speed of the water as x and the speed of the dolphin as y, and writing an equation.
y+x=50
y-x=30
Adding these two equations together, you get:
2y=80
y=40 for the speed of the dolphin in still water. Now, you an use one of the previous equations to find the speed of the current.
40-x=30
x=10
Hope this helps!
Answer:
34,762.50
Step-by-step explanation:By taking the total amount which is 27,000 dividing it by the rate annually which is 5.75% multiply it by the years which is 5 years you will get the total amount which will be paid back.
