Heeeeeeeeeeeeellllllllppppppppppppp

Alina charges $4 a ride plus $0.75 a mile as a uber driver. If a person only has $20 how far could they go?

Lilit [14]

Answer:

Step-by-step explanation:

$ 4 per ride and 0.75 per mile

y = 0.75x + 4.....with x being # of miles and y being total cost

if a person only had $ 20....so sub in 20 for y and solve for x

20 = 0.75x + 4

20 - 4 = 0.75x

16 = 0.75x

16 / 0.75 = x

x = 21.33 (or 21 1/3) miles <=====

8 0

3 years ago

1. A retirement account is opened with an initial deposit of $8,500 and earns 8.12% interest compounded monthly. What will the a

Rudik [331]

Answer:

Part A) $\$42,888.48$

Part B) $A=\$22,304$

Part C) The graph in the attached figure

Step-by-step explanation:

Part A) What will the account be worth in 20 years?

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=20\ years\\ P=\$8,500\\ r=0.0812\\n=12$

substitute in the formula above

$A=8,500(1+\frac{0.0812}{12})^{12*20}$

$A=8,500(1.0068)^{240}$

$A=\$42,888.48$

Part B) What if the deposit were compounded monthly with simple interest?

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=20\ years\\ P=\$8,500\\r=0.0812$

substitute in the formula above

$A=8,500(1+0.0812*20)$

$A=\$22,304$

Part C) Could you see the situation in a graph? From what point one is better than the other?

Convert the equations in function notation

$A(t)=8,500(1.0068)^{12t}$ ------> equation A

$A(t)=8,500(1+0.0812t)$ -----> equation B

using a graphing tool

see the attached figure

Observing the graph, from the second year approximately the monthly compound interest is better than the simple interest.

5 0

3 years ago

LeBron keeps track of events in his life relative to the year he was born. Relative to when he was born, his

Rina8888 [55]

Answer:

A

Step-by-step explanation:

change them both to absolute values->

3 and 7->

then compare->

7 is bigger :)

6 0

3 years ago

The ratio of Sam's age to Hank's age is 5 to 3. If the sum of their ages is 24, how old is Hank?

AfilCa [17]

Hank is 9 years old

explanation

hank´s age is 3/5 of sam´s age so if hank is 9 then sam must be 15

9 / 3 = 3
3 * 5 = 15
9 + 15 = 24

that´s it i hope i helped you

8 0

4 years ago

Read 2 more answers

Where does the toe tag go on a dead person if they don't have toes?

Alekssandra [29.7K]

Answer:

THERE Fake Toes!!!!

Step-by-step explanation:

Never criticize someone until you have walked a mile in their shoes.

That way, when you criticize them, you’ll be a mile away, and you’ll have their shoes.

How do you were shoes without Toes?

4 0

3 years ago