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
sergeinik [125]
3 years ago
13

Erica's parents gave her $500 for her high school graduation. She put the money into a savings account that earned 7.5% annual i

nterest. She left the money in the account for nine months before she withdrew it. About how many months would she have to leave the money in the account if she wants to reach her goal of saving $750? Give your answer in months.
Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0

Answer:

She would need to leave the money in her account for 6 years and 8 months.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E are the earnings, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

T = E + P.

In this question:

She put 500 into the saving account, so P = 500

7.5% annual interest, so I = 0.075

Saving $750. So we need T = 750.

Interest earned:

T = E + P

750 = E + 500

E = 250

How long to earn $250 in interest, in years:

E = P*I*t

250 = 500*0.075*t

t = \frac{250}{500*0.075}

t = 6.67

Converting to months:

6.67 years, that is, 6 years and (2/3) of an year.

An year has 12 months.

(2/3)*12 = 8.

So

She would need to leave the money in her account for 6 years and 8 months.

You might be interested in
What is (-6) + 12 Pre-Algebra
Pepsi [2]

Answer:

6

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Katya is baking cookies that require 8 1/2 grams of vanilla paste per batch. She has 22 1/5 grams of vanilla paste. How many bat
dmitriy555 [2]

Answer:

2 batches

Step-by-step explanation:

8.5×2=17

8.5 cant go into 22.2 anymore or else it'd be over 22.2

so  you can only make 2 batches

8 0
3 years ago
HELP ASAP! Pizza shack charges $8 per pizza with a $4 delivery fee. Pizza on the Plaza charges $10 per pizza but does not charge
Eva8 [605]

Answer:

8(p) +4 =10(p) , P = 2

Step-by-step explanation:

The equation that could be found as given in the question that,

$8 per pizza (p) with a $4 delivery fee which is equal to $10 pizza (p) without any charges.

8(p) +4 =10(p)

Rearranging the  equation to find the number of pizza (p)

4 = 10p - 8p

4 = 2P

4/2 =P

2 = P

P = 2

Therefore, there are 2 pizzas for $8 of pizza with delivery fee and 2 pizzas for $10 without any charges.

7 0
3 years ago
Flying against the wind, an airplane travels 4620 kilometers in 7 hours. Flying with the wind, the same plane travels 8640 kilom
nordsb [41]

The rate of the plane in still air is 870km/h and the rate of the wind 210km/h.

<h3>What is speed?</h3>

Speed has the dimensions of distance divided by time.

Let Speed of airplane be x km/h and Speed of Wind be y km/h

Speed direction of wind (x+y)

Speed in opposition of wind (x-y)

Now, using speed x time= distance

7( x-y)=4620

(x-y)=4620/7

=660------------------(1)

Similarly,

8(x+y)=8640

(x+y) =8640/8=1080-----------------------(2)

Adding (1) and (2)

2x=1740

x=870 km/h

Subtracting (1) from (2)

2y=420

=>y=210 km/h

So rate of airplane =870km/h

rate of wind=210km/h

Learn more about this concept here:

brainly.com/question/16970943

#SPJ1

6 0
1 year ago
The following data shows the temperature of a city, in degrees Celsius, on consecutive days of a month
suter [353]
Gg bro how about your last name
7 0
3 years ago
Other questions:
  • What is 2puls679,587,852,600,346,847,849,658,862
    7·2 answers
  • Which number produces a rational number when added to 0.25?
    13·2 answers
  • PLEASE HELP!!
    7·1 answer
  • Given that a linear function goes through the points (3.2) and (5.6) determine the slope
    10·1 answer
  • Michele is making a kite based on the pattern below. About how much binding does Michele need to cover the edges of the kite?
    11·1 answer
  • a triangle has an area of 230.86 sq in the height of a triangle is 23.8 in what is the length of the base of the triangle
    12·1 answer
  • What would the total bill be of a painting that costs $20.50 with a tax rate of 6%?
    5·1 answer
  • I need help what is the answer
    10·1 answer
  • What is 1 2/3 - 2 1/3​
    5·1 answer
  • An exponential function contains the points (1, 0.9) and
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!