answer.
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
2 years ago
12

A and B have certain number of mangoes. A says to B, " If you give me 10 of your mangoes, I will have twice as many as left with

you." B replies, "If you give me 10 of your mangoes, I will have thrice the number of mangoes left with you. Find the original number of mangoes each had.
Mathematics
1 answer:
Stella [2.4K]2 years ago
7 0

Answer:

A had 22 mangoes, B had 26 mangoes

Step-by-step explanation:

We can write the following system:

A + 10 = 2(B - 10) -- Equation 1

3(A - 10) = B + 10 -- Equation 2

A + 10 = 2B - 20 → A = 2B - 30 -- Equation 3 (Simplify Equation 1)

3(2B - 30 - 10) = B + 10 -- Equation 4 (Substitute 3 into 2)

3(2B - 40) = B + 10

6B - 120 = B + 10

5B = 130

B = 26 -- (Solve for B in Equation 4)

A = 2 * 26 - 30 = 22 -- (Substitute B = 26 into Equation 3)

You might be interested in
If 300% of 0.18 is equivalent to 20% of b, then b is equivalent to what number?
tatiyna

Answer:

2.7

Step-by-step explanation:

3*0.18=0.54

0.54/0.2=2.7

3 0
2 years ago
Read 2 more answers
The Freeman family is barbecuing veggie burgers, corn cobs, and mushroom caps in their local park. If 3/8of the items barbecued
Inessa05 [86]

Answer:

7/24

Step-by-step explanation:

4 0
2 years ago
Carissa counts by 5s from 32 to 62. Which number does carissa count?
Anna35 [415]

Answer:

32, 37, 42, 47, 52, 57, 62.

Step-by-step explanation:

It is given that Carissa counts by 5s from 32 to 62.

It means, we have to add 5 in the number to get the next number.

Add 5 in 32.

32+5=37

Now, add 5 in 37.

37+5=42

Similarly, continue the process.

42+5=47

47+5=52

52+5=57

57+5=62

Therefore, the numbers counted by carissa are 32, 37, 42, 47, 52, 57, 62.

4 0
2 years ago
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A cereal company claims that th
Dmitrij [34]

Answer:

There is not sufficient evidence to warrant the rejection of the claim that the mean weight of cereal is atleast 14 oz

Step-by-step explanation:

The hypothesis for the test above will be stated as follows :

The claim to be tested is the alternative hypothesis, which is the negation of the Null hypothesis

H0 : μ < 14

H1 : μ ≥ 14

If the Null is rejected, then it means that the company's claim that the mean weight of its cereal being atleast 14 is valid ;

Then it means there is significant evidence to support the stance that the mean weight of cereal in the company's packet is atleast 14 oz.

3 0
1 year ago
In △ABC, m∠ABC=40°,
Alchen [17]

Let m∠CLN = x. Then m∠ALM = 3x, and m∠A = 90°-x, m∠C = 90°-3x.

The sum of angles of ∆ABC is 180°, so we have

... 180° = 40° + m∠A + m∠C

Using the above expressions for m∠A and m∠C, we can write ...

... 180° = 40° + (90° -x) + (90° -3x)

... 4x = 40° . . . . . . . . . add 4x-180°

... x = 10°

From which we conclude ...

... m∠C = 90°-3x = 90° - 3·10° = 60°

The ratio of CN to CL is

... CN/CL = cos(∠C) = cos(60°)

... CN/CL = 1/2

so ...

... CN = (1/2)CL

5 0
2 years ago
Other questions:
  • the vertex form of a function is g(x) = (x – 3)2 9. how does the graph of g(x) compare to the graph of the function f(x) = x2? g
    6·2 answers
  • One container has 28 kg of flour and another has 4 kilograms how many kilograms must be taken from one container so that each ha
    10·2 answers
  • PLEEEEEEEEEEASE HELP ASAP
    8·1 answer
  • A box contains 225 marbles which are either red or blue. there are 31 more blue marbles than red marbles. how many blue marbles
    15·2 answers
  • A painter needs to paint a circular helicopter landing pad that is 24 yards in diameter. A gallon of paint covers 59 square yard
    8·2 answers
  • A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
    7·1 answer
  • Four whole numbers are each rounded to the nearest 10. The sum of the four rounded numbers is 90. What is the maximum possible s
    12·1 answer
  • If a gym class is divided into 4 equal teams, 2 students have to sit out; 5 teams, 1 student has to sit out; 6 teams, 4 students
    13·1 answer
  • Assume that the distribution of weights of adult men in the United States is normal with mean 190 pounds and standard deviation
    11·1 answer
  • A survey of 250 households showed 26 owned at least one snow blower. Find a point estimate for p, thepopulation proportion of ho
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!