victor are 60 de lei si merge la florarie pentru a-i cumpara mamei sale un buchet de flori. daca ar cumpara 9 garoafe si 4 trandafiri, ar plati 47 de lei. daca ar cumpara doar trandafiri, toti banii i-ar ajunge pentru 12 bucati. insa el cumpara 13 flori (garoafe si trandafiri) si ramane cu 5 lei rest, cate garoafe si cati trandafiri a cumparat victor?

Answers

Answer 1

Answer:

Număr de trandafiri = x = 5 trandafiri

Numărul este garoafe = y = 8 garoafe

Step-by-step explanation:

Pasul 1

Să reprezentăm:

Costul garoafelor = c

Costul trandafirilor = r

Victor are 60 de lei și merge la florărie să-i cumpere mamei sale un buchet de flori.

Dacă ar cumpăra 9 garoafe și 4 trandafiri, ar plăti 47 de lei.

Prin urmare,

9c + 4r = 47 ..... Ecuația 1

Dacă ar cumpăra doar trandafiri, toți banii ar fi suficienți pentru 12 bucăți.

Prin urmare,

12 trandafiri = 60 lei

1 trandafir = r lei

Cross Multiply

12r = 60 lei

r = 60 lei / 12

r = 5 lei

1 trandafir costă 5 lei

Înlocuim 5 cu r în ecuația 1

9c + 4 × 5 = 47

9c + 20 = 47

Colectează ca termeni

9c = 47 - 20

9c = 27

c = 27/9

c = 3 lei

Costul unei garoafe este de 3 lei

Pasul 2

Dar cumpără 13 flori (garoafe și trandafiri) și rămâne cu 5 lei rămași,

60 lei - 5 lei = 55 lei

Asta înseamnă că a cheltuit 55 de lei pe 13 flori.

Lasă

Număr de trandafiri = x

Numărul este garoafe = y

x + y = 13 ......... Ecuația 1

x = 13 - y

Din moment ce, Costul unei garoafe = 3 lei și 1 trandafir = 5 lei

3x + 5y = 55 ...... Ecuația 2

Înlocuim 13 - y cu x în ecuația 2

3x + 5y = 55

3 (13 - y) + 5y = 55

39 - 3y + 5y = 55

Colectează ca termeni

- 3y + 5y = 55 - 39

2y = 16

y = 16/2

y = 8

Rezolvarea pentru x

x = 13 - y

x = 13 - 8

x = 5

Prin urmare:

Număr de trandafiri = x = 5 trandafiri

Numărul este garoafe = y = 8 garoafe


Related Questions

The sum or three consecutive odd numbers is 51. Find the numbers​

Answers

Answer:

let the three no. be x, x+2, x+4

so, x+x+2+x+4= 51

3x+6= 51

3x=45

x=15

hence the required numbers are

x=15

x+2= 17

x+4=19

What is the volume of this container?
20 cm
2,125 cm3
5 cm
5 cm
2,000 cm3
5 cm
20 cm
15 cm
125 cm3
1,875 cm3

Answers

Answer:

the answer is C).1875 cm

Step-by-step explanation:

hope it helps bye!!

Evaluate the following equation for x. 2/5x = −20

Answers

2/5x=-20
x=-50
Explanation:
Whenever you take the 2/5 and divide it from -20 you are left with x=-50. Therefore, the value for x is -50.

Solve for 3x^2-10x+8=0
(SHOW YOUR WORK)QUICKLY

Answers

Answer:

Step-by-step explanation:

Step 1: Factor left side of equation.

(3x−4)(x−2)=0

Step 2: Set factors equal to 0.

3x−4=0 or  x−2=0

Answer:

x= 4 /3  or x=2

 

Answer:

5/3 +/- 1/3

or

x= 2

or

x= 1 /3

Step-by-step explanation:

plug all of the numbers into the formula attached,

the first coefficient is a, the second is b, and the last is c

So a=3 b=-10 and c=8

t-8=14??? I’m literally annihilating✋

Answers

Answer:

t=22

Step-by-step explanation:

just add 8 on both sides

Given a
rectangle of area 18x2 - 42x, the length is 6x, determine the width. HELP

Answers

Rectangle area = length * width
18x^2-42x=6x*width
Width = (18x^2-42x)/6x
Width = 3x-7

Let’s make sure
Area = length * width
Area = 6x * (3x-7)
Area = 18x^2 -42x which is true
That mean width = 3x-7

Hiiiooo!! Can someone please help me ❤️❤️❤️

Answers

Answer:

8

Step-by-step explanation:

40 ÷ 5 = 8

56 ÷ 7 = 8

so then just divide 64 by the one we know, which is 8

64 ÷ 8 = 8

The waiting time to ride a roller coaster is 1/3 of an hour when 150 people are in line. How
long is the waiting time when 240 people are in line? Write an equation and solve.

Answers

Answer:

[tex] \frac{66}{125} [/tex]

hours

Hope it helped

PLS mark BRAINLIEST

Is 4/5 greater or less than 45/100 how do you know

Answers

Answer:

4/5 is grater than 45/100

Step-by-step explanation:

Why?

because in percentage you make the bottom # a 100 one of them already has that and when it has 100 on the bottom it tells you that the top # is the percentage so 45/100 is 45%

now to make 4/5 a percentage what times 5 = 100?

20 does

so you times the top and bottom by 20

4*20= 80

now your fraction is 80/100  (top # tells you the %)

it's 80%

80% is grater than 45%

Answer:

4/5 is greater than 45/100.

Step-by-step explanation:

In order to figure it out, you need to make both fractions have common denominators. In order to do that, you figure out this:

5 times what equals 100? It's 20.

With fractions in this situation, whatever you do to the top, you have to do to the bottom. So, you multiply 4 times 20, which is 80.

In the end, you would end up with these two fractions:

80/100 and 45/100.

Obviously, 80/100 is greater than 45/100. In the beginning, 80/100 was originally 4/5. Therefore, 4/5 is greater than 45/100.

Please consider giving me brainliest if this helped you! :)

Tyler tried to solve an equation step by step
3(x +4)=-18

Answers

Answer:

x = -10

3(x + 4) = -18

3x + 12 = -18

3x + 12 = -18

3x = -18-12

3x = -30

x= -30/3

x = -10

Step-by-step explanation:

[tex]3(x + 4) = - 18 \\ (x + 4) = \frac{ - 18}{3 } \\ (x + 4) = - 6 \\ x = - 6 - 4 \\ x = - 10[/tex]

I need help with all of them

Answers

Answer:

Question 3: (D) All real numbers. Question 4: (B) y > 3.

I don't understand this ​

Answers

Answer:

[tex]m = 3 \sqrt{12} [/tex]

[tex]n = 6[/tex]

Step-by-step explanation:

n=1/2 of 12 according to the rule:

right triangle the side opposite the 30 degree angle is half the length of the hypotenuse.

so n=12/2=6

and now we will need Pythagorean theorem : the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2.

so

[tex] {m}^{2} + {n}^{2} = {12}^{2} [/tex]

now lets put numbers on formula

[tex] {m}^{2} + {6}^{2} = {12}^{2} [/tex]

from this formula m=

[tex]m = \sqrt{ {12}^{2} - {6}^{2} } = \sqrt{144 - 36} = \sqrt{108} = 3 \sqrt{12} [/tex]

Help Please 5 Stars and brainliest

The results of a study exhibit response bias. Select the statement that best describes the bias in the study. *

OThere were not enough subjects who chose to respond to a survey that was sent as part of the study.
O The interviewer for the study was the boss of the subjects.
O The interviewer for the study did not record the responses of the subjects accurately.
O There was a significant amount of people who declined to participate in the study.​

Answers

Answer:

the last one

Answer:

the answer is c

Step-by-step explanation:

Easy Math question that I dont get. pleaseeee help.
It is due in 5 minutes

Answers

Answer:

First, Third, Fourth, Fifth

Step-by-step explanation:

x² + 2x - 24 = (x + 6)(x - 4) = x² - 4x + 6x - 24 = x² + 2x - 24

True.

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False.

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True.

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True.

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Solve liner equation for they variable
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Answers

Answer:

all numbers

Step-by-step explanation:

3x - 5(x + 6) = -2x -2(5 + 10)

Distribute on both sides.

3x - 5x - 30 = -2x - 10 - 20

Add 2x to both sides.

-2x - 30 = -2x - 30

-30 = -30

Since we get a true statement after only doing legal steps to solve the equation, the equation has an infinite number of solutions.

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A
B
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D

Answers

The answer is C. The X-axis is horizontal so from side to side Y-axis up and down
I think it is C cause I did this before hope it is correct cause im at a good level

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y=-3x+13

y=-2x+1



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Answers

1) m= -3 (13/3,0)

2) m= -2 (1/2,0)

ILL GIVE BRAINLIST TO FIRST REAL ANSWER PLS HELP

what would the domain and range be

Answers

Answer:

2nd point

Step-by-step explanation:

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Answers

Answer:

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Answers

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Step-by-step explanation:

Hope the gif loads to help you but if not thats the answer.

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Answers

Answer:

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Step-by-step explanation:

Parker has $2,500 in her bank account that earns 3.8% interest annually. How much money will she have in her bank account after 4 years?

Answers

Answer:

$2,860

Step-by-step explanation:

2,500 * 3.8% = 90 in interest a year

so

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add that to what she put in

2,860

Answer:

2880

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2500+380

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Answers

Answer:

Step-by-step explanation:

7) A

8) D

9) B

10) A

Question 5
3 pts
(6.03)
How many variable terms are in the expression 3x3y + 5x2 + y + 9? (Input a
numeric value only.) (3 points)
Question 6
4 nts

Answers

Answer:

2

Step-by-step explanation:

1/5 of a box of erasers and youneed to share with 3 people including yourself what fraction of the box would each person get

Answers

1 1. 1
— x. — = —
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Find the value of x. in the below given diagram.

Answers

Answer:5,8

Step-by-step explanation:

x^2= 3^2 + 5^2

x^2= 9 + 25

x^2= 34

x = (square root)34

x= 5,8

Answer:

x = [tex]\sqrt{34}[/tex]

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 5² + 3² = 25 + 9 = 34 ( take the square root of both sides )

x = [tex]\sqrt{34}[/tex] ← exact value

x ≈ 5.83 ( to 2 dec. places )

Drive 288 miles on 16 gallons
of gas. ( help?)

Answers

The question you may be trying to ask is "A car can travel 288 miles on a full tank of gas. The gas tank holds 16 gallons. How many miles per gallon does the car get?"

Answer:

The car gets 18 gallons per mile.

288 / 16 = 18

A sign says that the price marked on all music equipment is 30% off the original price. You buy an electric guitar for the sale price of $315.

Answers

Answer:

figure it out

Step-by-step explanation:

Answer:10 dollars and 50 cents

Step-by-step explanation:315 divided by 30

List a positive and negative number whose absolute value is greater than 3 justify your answer using the answer using the number line

Answers

Answer is unavailable home right

ASAP! Please, Thank you.

Answers

Answer:

x\left(5-2\right)=4x-x ------> no solutions

14x-17-8x+2=12x+3-x-10 -----> unique solution

6\left(x-2\right)=6x-12 -------> no solutions

\frac{2}{3}x-\frac{7}{4}=\frac{4}{3}x-\frac{2}{3}\left(x+5\right) ------> infinite solutions

Step-by-step explanation:

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