Interest=1250-880=370
I=PRT
P=principal
r=rate in deicmal
t=time in years

1 month so t=1/12
P=880
I=370

370=880*r*1/12
370=220/3r
times both sides by 3
1110=220r
divdie both sides by 220
5.04545=r
505% interest

6 0

3 years ago

What is the slope of a line that contains the points(-13,8) and (-2,-1)

anygoal [31]

Answer:

slope = -(9/11)

Step-by-step explanation:

$slope=\frac{-1-8}{-2-(-13)} =\frac{-9}{-2+13} =-\frac{9}{11}$

I hope this help you

7 0

2 years ago

A half-filled cylindrical water tank has a water level of 20 feet high. The tank can hold 6000 cubic feet of water. Find the dia

OleMash [197]

Answer:

Diameter of tank = 19.5 ft

Step-by-step explanation:

Volume of cylinder = Base area x Height.

Base area = Area of circle

$\texttt{ Area of circle}=\frac{\pi d^2}{4}$

Height = 20 ft.

Volume of tank = 6000 cubic feet .

$\texttt{ Volume of cylinder = Base area x Height.}\\\\6000=\frac{\pi d^2}{4}\times 20\\\\d^2=381.97\\\\d=19.5ft$

Diameter of tank = 19.5 ft

4 0

3 years ago