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
Alenkasestr [34]
2 years ago
12

I need help in these questions please !​

Mathematics
1 answer:
timama [110]2 years ago
6 0

Answer:

b,b.a

Step-by-step explanation:

You might be interested in
During a football game a concession stand sold a family three hamburgers and two hotdogs for a total of $13 it's sold another fa
guajiro [1.7K]

Answer:

The price of each hamburger is $3

The price of each hot dogs is $2  .

Step-by-step explanation:

Given as :

The total price of 3 hamburger and 2 hot dogs = $13

The total price of 2 hamburger and 5 hot dogs = $16

Let The price of each hamburger = $x

Let The price of each hot dogs = $y

<u>Now, According to question</u>

3 x + 2 y = 13              .........A

2 x + 5 y = 16              .......B

Now, Solving to eq A and B

3 × (2 x + 5 y ) - 2 × (3 x + 2 y ) = 3 × 16 - 2 × 13

Or, (6 x + 15 y) - (6 x + 4 y) = 48 - 26

Or, (6 x - 6 x) + (15 y - 4 y) = 22

Or, 0 + 11 y = 22

∴  y = \dfrac{22}{11}

i.e y = $2

so, The price of each hot dogs = y = $2

<u>Now, Put the value of y into eq B</u>

i.e 2 x + 5 y = 16

or, 2 x + 5 × 2 = 16

or, 2 x = 16 - 10

or, 2 x = 6

∴  x = \dfrac{6}{2}

i.e x = $3

So, The price of each hamburger = x = $3

Hence, The price of each hamburger is $3 and  The price of each hot dogs is $2  . Answer

3 0
3 years ago
Can u guys help me on #24
lora16 [44]
56.5ft x 17ft x 1ft = 960.5ft^3.

The question wants the answer in ft^3. One of the measurements is given as 13 inches but that converts to 1ft. And with the volume formula for rectangles is widthxlenghtxheight. Plug in the numbers.
7 0
2 years ago
Calcular la edades actuales de una madre y sus dos hijos sabiendo que hace 14 años la dad de la madre era 5
rodikova [14]

The present age of mother and her daughter respectively are; 40 and 10 years respectively.

<h3>How to Solve Algebra Word Problems?</h3>

Let x and y be the present age of mother and her daughter respectively.

Therefore;

x + y = 50

x = 50 − y     .....(1)

After 20 years, mother's age will be twice her daughter's age at the time. Thus;

x + 20 = 2(y + 20)

x − 2y = 20     .....(2)

Plugging eq 1 into eq 2 gives us;

50 − y − 2y = 20

3y = 30

y = 10

Thus;

x = 50 − 10

x = 40

Thus, the present age of mother and her daughter is 40 and 10 years respectively.

Translation of the question into English is;

The sum of the present ages of mother and her daughter is 50 years. After 20 years, mother's age will be twice her daughter's age at the time. Find their present ages.

Read more about Algebra Word Problems at; brainly.com/question/21405634

#SPJ1

6 0
1 year ago
How much higher is 500 than 400
DerKrebs [107]

99.9 is the answer       is that ok

7 0
3 years ago
Read 2 more answers
Solve the following equation<br> x²-10x+25=0
liq [111]

Answer:

X=5

Step-by-step explanation:

You want to factor the left side of the equation

(X-5)(x-5)=0

Set factors that will equal to 0

X-5=0

X=5 is the answer

3 0
2 years ago
Other questions:
  • Yeah I need help ASAP please and thank you
    13·2 answers
  • The sum of two numbers is 44 . the larger number is 12 more than the smaller number. what are the numbers?
    13·1 answer
  • Find the most important variable in the problem,
    8·1 answer
  • What is the GCF of two prime Numbers ??Give Me A Example?
    7·1 answer
  • .A car is traveling at 65 miles per hour. What happens to the number of miles when the number of hours changes?
    8·2 answers
  • Use the image to the right for this question:
    9·1 answer
  • Yis inversely proportional to X.<br> When X = 3, Y = 8<br> Work out the value of Y when X = 8.
    13·1 answer
  • Prove whether the following inferences are valid using the long or short truth table method. If they are invalid, give the count
    12·1 answer
  • Sarah has 13 stickers. Sissy has 28 stickers. Sissy divides her stickers into 4 equal groups.
    8·1 answer
  • How could I use bug repellent and bug bites to show a linear relationship?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!