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
Alex
1 year ago
15

A woman saw oranges and mangos ad the market. She bought some oranges at 35 cents each and some mangoes at $1.00. if she bought

a total of 25 fruits, which had a total cost. of $12.00 How much of each fruit did she buy?​
Mathematics
1 answer:
marysya [2.9K]1 year ago
8 0

Answer: 20 oranges and 5 mangoes

Step-by-step explanation:

Define the following:

x = number of oranges

y = number of mangoes

Make the following system of equations:

x + y = 25

0.35x + 1.00y = 12.00

Solve for x:

y = 25 - x

⇒ 0.35x + 1.00(25 - x) = 12.00

⇒ 0.35x + 25 - x = 12.00

⇒ -0.65x = -13.00

⇒ x = 20

Solve for y:

20 + y = 25

y = 5

∴ 20 oranges and 5 mangoes were purchased.

You might be interested in
What is electronic government ? and give some examples of it ..
yanalaym [24]

The electronic government or e-government, also used as synonyms the terms electronic administration or e-administration, consists of the use of information and communication technologies and knowledge in internal government processes, as well as in the delivery of the products and services of the State to both citizens and industry.

Like e-government examples we can take: Portals, ERP, GRPs, CRMs and social networks.

8 0
3 years ago
What do you need to do to extend a number pattern
GREYUIT [131]
You find the pattern and keep doing it.
5 0
3 years ago
A $4,000.00 principal earns 5% interest, compounded annually. After 4 years, what is the balance in the account?
denis23 [38]
First question:
interest rate is 5% annually. After 4 years relative value of interest will be 1.05^4
Now we multiply that with starting funds and get
4000* 1.05^4 = 4862.03

Second question:
Because interest is 8% semiannually that means that after 35 years relative value of interest will be   1.04^(35*2)
6000*1.04^70 = 93,429.71

Third question:
after first year tractor's value will be 0.86*15450. After 3 years its value will be:
(0.86)^3*15,450 = 9,827.07
6 0
2 years ago
Find the population mean or sample mean as indicated. Sample: 19, 15, 6, 11, 24 Compute the sample mean for this data set. Selec
yKpoI14uk [10]

Answer:

\overline{x}=15

Step-by-step explanation:

the mean is given by:

\overline{x} = \dfrac{\sum\limits_{i=1}^n x_i}{n} \quad\text{or}\quad \dfrac{\text{sum of all items}}{\text{number of items}}

In our case this is:

\overline{x} = \dfrac{19+15+6+11+24}{5} \Rightarrow \dfrac{75}{5}\\\\\overline{x} = 15\\\\

side note: the main difference between sample mean and population mean is in the 'context'. However, the method to calculate them is the same.

By context I mean: if this the items are taken from some larger category for example: the ages of a few 'students' from a 'class'. Here 'students' are the sample from a larger set that is 'class'. The mean of the 'few students' will be called sample mean. In contrast, if we take the mean of the ages of the whole class then this is called population mean. (population mean == mean of the whole set)

In our case we aren't told exactly where these numbers come from, is this the whole set or a sample from it, the lack of context allows us to assume that the mean can either be population mean or sample mean. So we can safely use any symbol \mu or \overline{x}.

3 0
3 years ago
A bill for Rs 3235 was drawn on Feb. 3, 1998 at 6 months and discounted on March 3, 1998 at 8 % p.a. Find the value of the bill
Fantom [35]

Answer:

RS 3127.166

RS 107.834

Step-by-step explanation:

6 month bill :

Drawn date = Feb, 3

Discounted date = March 3,

Difference = 1 month

6 month - 1 month = 5 months = 5 * 30 = 150 days

Value of the bill :

P(1 - rate * time)

3235(1 - 0.08 * 150/360)

3235(1 - 0.08 * 0.4166666)

3235(1 - 0.0333333)

3235(0.9666666)

= Rs3127.1666

Value of bill = 3127.166

Bankers gain = 3235 - 3127.166 = 107.834

6 0
3 years ago
Other questions:
  • Use addition or subtraction to solve this problem.
    11·1 answer
  • Simplify the expression 6(x+4)+1 and 5+8(3+x)<br><br> Thanks
    6·2 answers
  • find the inner product for (3,5) x (4,-2) and state whether the vectors are perpendicular. a.1; no b.1;yes c.2; no d.2; yes
    5·1 answer
  • If two lines have the same slope and y-intercept, what is true of the lines? A. The lines are perpendicular. B. The lines inters
    7·2 answers
  • Shannon is dressing a mannequin for a store window to show off a new line of men's clothing. Shannon can choose from 2 different
    5·2 answers
  • If two sides of a rectangle are 5 units and 9 units, what is the perimeter?
    10·1 answer
  • 5. How many more more vertices does a rectangular prism have than triangular pyramid?​
    14·1 answer
  • Find the area of the shape shown below
    8·2 answers
  • First one to answer gets brainlist <br><br><br>what's ur fav color?​
    8·2 answers
  • A tank originally contains 100 gallon of fresh water. Then water containing 0.5 Lb of salt per gallon is pourd into the tank at
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!