1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AveGali [126]
3 years ago
7

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

she earn? Use the formula I=Prt to find your answer, where I is interest, P is principal, r is rate and t is time. Enter your solution in decimal form rounded to the nearest hundredth. For example, if your solution is 12%, you would enter 0.12.
Mathematics
2 answers:
alukav5142 [94]3 years ago
7 0

Answer:

R=0.05

Step-by-step explanation:

Mrac [35]3 years ago
5 0
R=i/pt
R=450÷(3,000×3)
R=0.05
You might be interested in
Please answer this ASAP
valkas [14]

Answer:

x = 2

Step-by-step explanation:

First, let's write out our equation:

2x-4=6-3x

I want to isolate x on one side, so first, I'll add 4 to both sides to remove the -4 from next to 2x:

2x-4+4=6-3x+4\\2x=-3x + 10

Notice that I combined like terms with the -4 and 4 (to get 0) and the 6 and 4 on the right side (to get 10). Next, I'll add 3x to both sides:

2x + 3x = -3x + 3x + 10

And then I'll add like terms:

5x=10

Now, all we have to do is divide both sides by 5:

5x/5=10/5\\x=2

And there's our answer. Hopefully that's helpful! :)

6 0
2 years ago
Can someone help me with this! Ty
rosijanka [135]

Answer:

drag  10 to the

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Twenty percent of drivers driving between 10 pm and 3 am are drunken drivers. In a random sample of 12 drivers driving between 1
Lesechka [4]

Answer:

(a) 0.28347

(b) 0.36909

(c) 0.0039

(d) 0.9806

Step-by-step explanation:

Given information:

n=12

p = 20% = 0.2

q = 1-p = 1-0.2 = 0.8

Binomial formula:

P(x=r)=^nC_rp^rq^{n-r}

(a) Exactly two will be drunken drivers.

P(x=2)=^{12}C_{2}(0.2)^{2}(0.8)^{12-2}

P(x=2)=66(0.2)^{2}(0.8)^{10}

P(x=2)=\approx 0.28347

Therefore, the probability that exactly two will be drunken drivers is 0.28347.

(b)Three or four will be drunken drivers.

P(x=3\text{ or }x=4)=P(x=3)\cup P(x=4)

P(x=3\text{ or }x=4)=P(x=3)+P(x=4)

Using binomial we get

P(x=3\text{ or }x=4)=^{12}C_{3}(0.2)^{3}(0.8)^{12-3}+^{12}C_{4}(0.2)^{4}(0.8)^{12-4}

P(x=3\text{ or }x=4)=0.236223+0.132876

P(x=3\text{ or }x=4)\approx 0.369099

Therefore, the probability that three or four will be drunken drivers is 0.3691.

(c)

At least 7 will be drunken drivers.

P(x\geq 7)=1-P(x

P(x\leq 7)=1-[P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)+P(x=5)+P(x=6)]

P(x\leq 7)=1-[0.06872+0.20616+0.28347+0.23622+0.13288+0.05315+0.0155]

P(x\leq 7)=1-[0.9961]

P(x\leq 7)=0.0039

Therefore, the probability of at least 7 will be drunken drivers is 0.0039.

(d) At most 5 will be drunken drivers.

P(x\leq 5)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)+P(x=5)

P(x\leq 5)=0.06872+0.20616+0.28347+0.23622+0.13288+0.05315

P(x\leq 5)=0.9806

Therefore, the probability of at most 5 will be drunken drivers is 0.9806.

5 0
3 years ago
Please help me its really important
Serga [27]

Answer:

I think that the answer isssss B

5 0
3 years ago
Select the correct answer.
ivolga24 [154]
I think the answer is c
3 0
1 year ago
Read 2 more answers
Other questions:
  • Estimate the area under the curve f(x) = x^2 from x = 1 to x = 5 by using four inscribed (under the curve) rectangles. Answer to
    7·1 answer
  • A kite with a string 50 meters long makes an angle of elevation of 58o with the ground, assuming the string is straight, how hig
    15·1 answer
  • A rectangular swimming pool is 30 feet wide and 40 feet long. How long is the diagonal of the pool?
    12·1 answer
  • Nani needs to buy 8 cups of fresh pineapple for a fruit cocktail. The table shows the unit prices (per cup) of pineapple at diff
    15·3 answers
  • What is the first step in simplifying the expression 11x-2-3(1-7x)^2\(x+1)
    8·2 answers
  • HURRY PLEASE!!!!!!!<br><br> What is the argument of z = 1/16 - square root of 3/16 i?
    13·2 answers
  • There is a 52% chance that a player will win a certain carnival game. Which statement describes the likelihood that a player wil
    14·1 answer
  • State the x-intercept, y intercept and the slope for each graph. Then write an equation in slope intercept form
    8·1 answer
  • Find the midpoint between (-1,5) and (7,-8).
    10·2 answers
  • Help I need this today before 12:50pm
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!