Answer:
Costul unui kilogram de nectarine = x = 6 lei
Costul kilogram de piersicilor = y = 4 lei
Step-by-step explanation:
Lăsa
Costul nectarinelor = x
Costul piersicilor = y
Prin urmare:
Dacă 4 kg de nectarine și 6 kg de piersici costă 48 de lei
4x + 6y = 48 .... Ecuația 1
3 kg de nectarine și 9 kg de piersici costă 54 de lei
3x + 9y = 54 .... Ecuația 2
Combinând ambele ecuații
4x + 6y = 48 .... Ecuația 1
3x + 9y = 54 .... Ecuația 2
Rezolvăm folosind metoda Eliminare
Înmulțiți ecuația 1 cu 3 și ecuația 2 cu 4 pentru a elimina x
12x + 18y = 144 .... Ecuația 3
12x + 36y = 216 ... Ecuația 4
Scădeți ecuația 4 din 3
-18y = -72
y = -72 / -18
y = 4 lei
Pentru a rezolva pentru x: y = 4
4x + 6y = 48 .... Ecuația 1
4x + 6 × 4 = 48.
4x + 24 = 48
4x = 48 - 24.
4x = 24
x = 24/4
x = 6 lei
Prin urmare:
Costul unui kilogram de nectarine = x = 6 lei
Costul kilogram de piersicilor = y = 4 lei
Determine if the triangles below are congruent. If yes, indicate which postulate (SSS, SAS, ASA, AAS, or HL would prove them congruent
hope this helped
1. The triangle is congruent by ASA postulate
2. The triangle is congruent by SSS postulate
3. The triangle is congruent by SAS postulate
4. The triangle is congruent by SSS postulate
5. The triangle is congruent by SAS postulate
6. The triangle is congruent by SSS postulate
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Two triangles are said to be congruent if all three corresponding sides are equal and all the three corresponding angles are equal in measure.
1.The triangle is congruent by ASA postulate
If two angles and the included side of one triangle are congruent to two angles and the included side of a second triangle, then the triangles are congruent.
2. The triangle is congruent by SSS postulate
If all three sides of a triangle are congruent to corresponding three sides of other triangle then the two triangles are congruent.
3. The triangle is congruent by SAS postulate
if two sides of one triangle and the angle included between them are congruent to two sides and the included angle of a second triangle, then the triangles are congruent.
4. The triangle is congruent by SSS postulate
5. The triangle is congruent by SAS postulate
6. The triangle is congruent by SSS postulate
Hence 1. The triangle is congruent by ASA postulate
2. The triangle is congruent by SSS postulate
3. The triangle is congruent by SAS postulate
4. The triangle is congruent by SSS postulate
5. The triangle is congruent by SAS postulate
6. The triangle is congruent by SSS postulate
To learn more on Triangles click:
https://brainly.com/question/2773823
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If a radioactive isotope has a half-life of 6 hours and 12 milligrams is initially present, how much will
be present in 24 hours?
Answer:0.75 milligrams will be present in 24 hours
Step-by-step explanation:
Step 1
The formula for radioactive decay can be written as
N(t)=No (1/2)^(t/t 1/2)
where
No= The amount of the radioactive substance at time=0=milligrams
t 1/2= the half-life= 6 hours
t=24 hours
N(t) = the amount at time t
Step 2--- Solving
N(t)=No (1/2)^(t/t 1/2)
=N(t)=12 x ( 1/2) ^ (24/6)
= 12 x (1/2) ^4
= 12 x 0.0625
= 0.75 milligrams
Nadine conducted an experiment with four possible outcomes. Trevor conducted the same experiment, but he doubled the number of trials. Which statements are true? Select two options. Trevor has more experimental outcomes than Nadine. Trevor’s sample space is greater than Nadine’s. Trevor’s experimental probability is more likely closer to the theoretical probability than Nadine’s. Nadine’s experimental probability is more likely closer to the theoretical probability than Trevor’s. Nadine has more experimental outcomes than Trevor.
Answer:
A and C
Step-by-step explanation:
Nadine and Trevor both conducted an experiment but Nadine conducted with four possible outcomes and Trevor doubled the trials, therefore, Trevor will have more experimental outcomes than Nadine because he doubled the trials. Moreover, Trevor's experimental probability is more likely closer to theoretical probability than Nadine's, therefore option 'A' and 'C' are correct.
Answer:
Trevor has more experimental outcomes than Nadine.
Trevor’s experimental probability is more likely closer to the theoretical probability than Nadine’s.
Step-by-step explanation:
which describes the equation: y=4x-5
1._ the equation has a rate of change of -5 and crosses y intercept at 4
2.- the equation has a rate of change of 4 and crosses y intercept at -5
3._ none of the above
4._ all the above
Answer:
hello
Step-by-step explanation:
What are all possible values of x if x3 + 9 > 27?
Answer:
x > 6
Step-by-step explanation:
3x + 9 > 27
3x > 27 -9
x > 6
the values of X are greater than 6
The use of logic, making empirical observations, and performing dissections were all part of the scientific studies by
Answer:
Aristotle
Step-by-step explanation:
Aristotle is widely known as a Greek philosopher. His works cover a wide range of topics and subjects, including subjects relating to science, arts, and finance.
Throughout his lifetime as a philosopher he was known to utilize logic, preparing empirical observations, and performing dissections as all part of his scientific studies.
Hence, in this case, the correct answer is ARISTOTLE
What are the next three terms in the sequence? 2, -3, -6, 18, … -108, -1,944, -209,952 -108, 1,944, -209,952 -108, -1,944, 209,952 108, 1,944, 209,952
Answer: -108, -1,944, 209,952
Step-by-step explanation:
The the next term in this sequence is being determined by multiplying the last two numbers of the sequence.
Next three terms are;
= -6 * 18
= -108
= 18 * -108
= -1,944
= -108 * -1,944
= 209,952
Read the excerpt from Heart of a Samurai.
[Manjiro] took one last glance behind them and noticed something strange. Dark streaks ran like ribbons through the water.
Which best states the author’s purpose for using the word “strange”?
A. to develop Manjiro’s character
B. to create a feeling of suspense
C. to describe the story’s setting
D. to quicken the pace of the story
Answer:
uhm i think its A
Step-by-step explanation:
sorry if i get it wrong
:):
Answer:ITS A
Step-by-step explanation:
Need help ASAP please
Answer:
$45
Step-by-step explanation:
sum the parts of the ratio, 3 + 5 = 8 parts
Divide the amount by 8 to find the value of one part of the ratio.
$120 ÷ 8 = $15 ← value of 1 part of the ratio, thus
3 parts = 3 × $15 = $45 ← amount David received
Answer:
$45
Step-by-step explanation:
ratio is 3:5
David gets 3x, Jack gets 5x
So, 3x+5x=120
8x=120
x=15
David got 3x = 3*15 = $45
Doughnut Muffins
cups flour 1 cup oil
teaspoons baking powder cups sugar
teaspoons salt 3 eggs
teaspoons nutmeg cups milk
teaspoon cinnamon
Combine flour, baking powder, salt, nutmeg, and cinnamon in a bowl. In another bowl, combine oil, sugar, egg, and milk. Add liquid ingredients to dry ingredients; stir only to combine. Bake in paper-lined muffin tins at 350° for 20 to 25 minutes.
Donna wants to make a batch of doughnut muffins that only yields 12 muffins. Modify the recipe for her, making sure to include new measurements of every ingredient.
Answer:
1 3/4 cups of flour
1/3 cup oil
1 1/2 teaspoons baking powder
3/4 cups sugar
1/2 teaspoons salt
1 egg
3/4 cups milk
1/4 teaspoon cinnamon
I hope this is right!
Step-by-step explanation:
Looks like I can update my answer!
Okay...the recipe is...
Doughnut muffins
Yields: 36 muffins
5 1/4 cups of flour
1 cup oil
4 1/2 teaspoons baking powder
2 1/4 cups sugar
1 1/2 teaspoons salt
3 eggs
2 1/4 cups milk
3/4 teaspoon cinnamon
Alright, it looks as though what you need to do here first is to turn everything into improper fractions. This would result in:
21/4 cups of flour
1/1 cup oil
9/2 teaspoons baking powder
9/4 cups sugar
3/2 teaspoons salt
3/1 eggs
9/4 cups milk
3/4 teaspoon cinnamon
Then, divide everything by three...
7/4 cups of flour
1/3 cup oil
3/2 teaspoons baking powder
3/4 cups sugar
1/2 teaspoons salt
1/1 egg
3/4 cups milk
1/4 teaspoon cinnamon
...and simplify.
1 3/4 cups of flour
1/3 cup oil
1 1/2 teaspoons baking powder
3/4 cups sugar
1/2 teaspoons salt
1 egg
3/4 cups milk
1/4 teaspoon cinnamon
There you go!
Highest Common Factor of 42
Answer:
42 is itself it's highest common factor
Please help! giving all the points I have!!! will give brainliest!!
a road crew can repave 1/15 miles of road each hour. they must repave a road that is 3/5 miles long. how long will it take the crew to repave the road?
Answer:
9 hours
Step-by-step explanation:
For this problem, we simply need to rewrite the goal length, 3/5 miles, into our ratio of time length equivalence, 1 hour per 1/15 miles. To do this we find the common denominator to be 15 and rewrite it as so:
3/5
= 3*3 / 5 * 3
= 9 / 15
And since it takes 1 hour per 1/15 mile of road, we can perform the division to find the amount of time:
9/15 / 1/15
= 9/15 * 15/1
= ( 9 * 15 ) / ( 15 * 1 )
= 9 / 1
= 9
Hence, it will take the crew 9 hours to repave the road.
Cheers.
Answer:9 hours
Step-by-step explanation:
3/5x3/3 = 9/15.
Tamir drank 2 1/4 cups of orange juice in the morning and 10 1/4 cups in the afternoon. How much orange juice did Tamir drink in all? Write your answer as a fraction or as a whole or mixed number.
Answer:
12 1/4 cups
Step-by-step explanation:
Add the morning and the afternoon amounts together
2 1/4 + 10 1/4
12 2/4
Simplify the fraction
12 1/4 cups
Sum of positive 3 negative -2 and negative-5
Answer:
-4
Step-by-step explanation:
I went ahead and just added it to get that answer however if you need it subtracted from one another the answer is 10
Hope this helps please mark me the brainliest! Peace and love
Answer:
3+(-2) +(-5)
3 -2 -5= - 4
adding a negative is the same as subtracting a positive.
Which interval on the graph could be described as linear constant?
A coordinate plane is shown. A line is horizontal from x equals 0 to 2, increases from 2 to 4, decreases from 4 to 5, and decreases at a slower rate from 5 to 8.
A
B
C
D
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
What is the measure of angle JHN.
Answer:
it's a)25
Step-by-step explanation:
angle MHL and JHN+NHK should be the same, they both are 95 degrees
Answer:
45°
Step-by-step explanation:
first of all find X
(3x+20) - (x+25) =x + 20
3x+20-x-25=x+20
3x-x+20-25=x+20
2x-5=x+20
collect like terms
2x-x=20+5
x=25°
recall JHN= (x+20)°
x=25
JHN=((25)+20)°
JHN=(25+20)°
JHN=45°
Hope it is helpful
Please Help! I’m Dum
Answer:
same im dum 2 :((((
Step-by-step explanation:
i need help with number 2.
Answer:
(1)
Step-by-step explanation:
Given
[tex]\frac{2x}{a}[/tex] + b = c ( subtract b from both sides )
[tex]\frac{2x}{a}[/tex] = c - b ( multiply both sides by a to clear the fraction )
2x = a(c - b) ← distribute
2x = ac - ab ( divide both sides by 2 )
x = [tex]\frac{ac-ab}{2}[/tex] → (1)
The sum of n consecutive integers is 14. The median of the
numbers is 2. What is n?
Answer:
n is 7
Step-by-step explanation:
-1,0,1, 2 ,3,4,5
-1 + 0 + 1 +2 + 3 + 4 + 5 = 14
Solve for W: P=2L + 2W
A. W=P-L
B. W= 1/2P - L
C. W= 1/2 P + L
D. W= 2P - L
Answer:
B
Step-by-step explanation:
[tex]P=2L+2W[/tex]
[tex]P-2L=2W[/tex] (Subtract 2L from both sides of the equation)
[tex]2W=P-2L[/tex] (Symmetric Property of Equality)
[tex]W=\frac{P-2L}{2}[/tex] (Divide both sides of the equation by 2)
[tex]W=\frac{P}{2} -\frac{2L}{2}[/tex] ("Split" the fractions)
[tex]W=\frac{1}{2}P-L[/tex] (Simplify)
Hope this helps!
A factory produced a batch of handheld video games, but 4% of the games were found to be defective. If the batch had 250 games in all, how many games in the batch were not defective?
A.
240
B.
150
C.
100
D.
10
Answer:
A) 240 games are not defective
Step-by-step explanation:
1% of 250 = 2.5
*4 *4
4% of 250 = 10
250 - 10 = 240
240 games are not defective
Help me pleaseee !!
Answer:
the answer is 2
Step-by-step explanation:
because 2x2 is 4 so x=2
Could someone create Equations & Explanations based on this question, because I need to solve using substitution and later modify it to create a system of inequalities.
Answer:
3 hours
Step-by-step explanation:
If both the cars are moving in the same direction,
Speed of orange sports car = 60 miles per hour
Since, this car has already moved for 1 hour,
Distance covered by the sports car = speed × time
= 60 × 1
= 60 miles
Speed of the green van = 30 miles per hour
Since, green van has already moved for the duration = 3 hours
Distance covered by the green van = speed × time
= 40 × 3
= 120 miles
Therefore, distance between sports car and green van = 120 - 60
= 60 miles
Relative speed of orange sports car with respect to green van = Speed of sports car - speed of green van
= 60 - 40
= 20 miles per hour
Time taken by the orange sports car to cover 60 miles (Distance between sports car and green van) = [tex]\frac{\text{Distance between the car and van}}{\text{Relative speed of the sports car}}[/tex]
= [tex]\frac{60}{20}[/tex]
= 3 hours
Therefore, orange sports car will take 3 hours to pass the green mini green van.
HURRY UP PLS
The diameter of a red blood
cell is about 0.0008 cm. The diameter ofa
chicken pox virus is about 1.7 x 10-5 cm. What is the approximate ratio of the
diameter of the red blood cell to the diameter of the chicken pox virus?
OA. 1.9 x 10-2
OB. 4.7 x 101
OC. 1.9 x 10-3
O D. 4.7 x 102
Answer:
its B my guy I had that question before
Answer:
B.4.7 x 101
Step-by-step explanation:
it's 4.7 x 101
plz help ill mark brailiest
Answer:A
Step-by-step explanation: plz leave a like
Answer:
The correct graph is A
Step-by-step explanation:
What is a synthetic material made of?
Synthetic fibers are made from raw materials such as petroleum, based on chemicals or petrochemicals [20]. These materials are polymerized into a long, linear chemical with different chemical compounds and are used to produce various types of fibers.
5 of 8
The perimeter of a regular decagon is 513m.
State the length of one of its sides.
Step-by-step explanation:
Decagon = 10-sided polygon
Perimeter of 10 sides = 513m
Perimeter of 1 side = 513m/10 = 51.3m.
1, 4, 9, 16, 25, ______, ______, ______
please help :( will give brainliest!
Answer:
A, C, and D
Step-by-step explanation: