Answers
Answer:
✔️The correct system of linear equations:
2x + 3y = 34
3x + 2y = 36
Cost of each roast beef sandwich: $8
Cost of each turkey sandwich: $6
Step-by-step explanation:
Cost of each roast beef sandwich = x
Cost of each turkey sandwich = y
First platter consists of:
2 roast beef sandwiches, which costs 2 × x = 2x, and,
3 turkey sandwiches, which costs 3 × y = 3y.
Total cost of first platter is $34.
Thus, an equation that represents this scenario would be:
2x + 3y = 34.
The other platter consists of:
3 roast beef sandwiches, which costs 3 × x = 3x, and,
2 turkey sandwiches, which costs 2 × y = 2y.
Total cost is $36.
Thus, an equation that represents this scenario would be:
3x + 2y = 36.
The correct system of linear equations would be:
2x + 3y = 34
3x + 2y = 36
Find the value of x and y by solving simultaneously.
Thus:
2x + 3y = 34 ----› Eqn. 1 × 2
3x + 2y = 36 ----› Eqn. 2 × 3
4x + 6y = 68
9x + 6y = 108
Subtract
-5x = - 40
Divide both sides by -5
x = 8
Cost of each roast beef sandwich = x = $8
Substitute x = 8 into eqn. 1.
2x + 3y = 34 ----› Eqn.
2(8) + 3y = 34
16 + 3y = 34
3y = 34 - 16
3y = 18
Divide both sides by 3
y = 6
Cost of each turkey sandwich = y = $6
Related Questions
Large bottle of juice contains 500 ml of juice. Medium bottle contains 70% as much juice as large bottle. How many milliliters of juice are in the medium bottle?
Answers
Answer:
350 milliliters
Step-by-step explanation:
70% of 500 is 350
Points..................
Answers
A well know Statistical Institution claims that the average College tuition for a law degree costs at least thirty five thousand dollars. Analyzing a sample of fifty law schools in the vicinity of the study we found the sample had a mean tuition of $33,450 with a population standard deviation of $5,978 per year. At 2% level of significance test the Institution's claim.
Answers
Step-by-step explanation:
Below are the null and alternative Hypothesis,
Null Hypothesis, H0: μ = 35000
Alternative Hypothesis, Ha: μ < 35000
Test statistic,
z = (xbar - mu)/(sigma/sqrt(n))
z = (33450 - 35000)/(5978/sqrt(50))
z = -1.83
P-value Approach
P-value = 0.0336
As P-value >= 0.02, fail to reject null hypothesis.
There is not sufficient evidence to conclude that the average College tuition for a law degree costs at least thirty five thousand dollars.
5x+30=45 solve for x
Answers
Answer:
3
Step-by-step explanation:
5x=45-30
5x =15
divide both sides by 5
x=3
I NEED HELP ( please dont steal or guess means not to me) and I will giver brainiest if you have proof
Answers
Answer:
option d, 7.25Step-by-step explanation:
2AB=YZ(By parallel line theorem)
4x-8=21
4x=29
x=29/4=7.25Solve each equation mentally. a. 5/2 x ? = 1
Answers
Answer:
1 is the answer why because its multiply both side 1
What is the volume of a cylinder, in cubic ft, with a height of 9ft and a base diameter
of 16ft? Round to the nearest tenths place
Answers
Answer:
Volume of cylinder is: Volume=1808.64 ft³
Step-by-step explanation:
Height of cylinder = 9 ft
Base diameter of cylinder = 16 ft
We need to find volume of cylinder .
The formula used is: [tex]Volume=\pi r^2h[/tex]
We need radius:
The radius = diameter/2 = 16/2 = 8 ft
Putting values and finding volume of cylinder
[tex]Volume=\pi r^2h[/tex]
[tex]Volume=3.14\times (8)^2\times (9) \\Volume=3.14\times 64\times (9) \\Volume=1808.64 \: ft^3[/tex]
So, Volume of cylinder is: Volume=1808.64 ft³
p l e a s e a n s w e r t h i s q u e s t i o n NOW
Answers
Answer:
90 percent
Step-by-step explanation:
easy 36/40=0.9
that means 90 percent
just get big number divided by small
Brainliest PleaseAnswer:
90%
Step-by-step explanation:
36/40 = 9/109/10 = 90/100 90/100 = 90%I hope this helps!
The basketball team took 20 free throws in the game and made 65% of them how many free throws did they make?
Answers
Answer:
its 13
Step-by-step explanation:
factorise xy-3x²+2x
Answers
[tex]xy-3x^2+2x[/tex]
Factor by pulling out the x-term.
[tex]x(y-3x+2)[/tex]
Arrange as we get -
[tex]x(-3x+y+2)[/tex] ----------> Answer
Plot and label 3 different points with x-coordinate 3.
Answers
These all hav the x cord of 3
Plz giv brainlyest Bro I need it
Find the slope of the line from the table.
X
1
4
7
10
у
7
5
3
1
1
Answers
50 points i really need help
Answers
Answer:
first one i just don't find that sign of math in my computer but yeah
Step-by-step explanation:
HAPPY HOLIDAYS :)
who can do it? Try to solve it if u can
Answers
Answer:
The other girls answer was correct
for the top boxes from left to right...
3.5 plus 4.5
bottom boxes
9.5 minus 3.5
Step-by-step explanation:
PLEASE HELP (will give brainiest) (please dont steal it would mean Alot)
Answers
Answer:
87, if it were 45 degrees, it would be 90, closest to 90 is 87
Answer:
87 feet
Step-by-step explanation:
We have an angle that's 44 degrees and we know that Susan is 90 feet from the base of the tree. We need to know the height of the tree, which is the value opposite from the angle we know.
Use tangent to find height.
tan (44) = x / 90 then multiply both sides by 90
x = tan (44) * 90 evaluate tan(44) and substitute into the equation
x = 86.911
round to nearest whole foot: 87 feet
Please help me solve this problem
Answers
Answer:
Answer is D.
Step-by-step explanation: When looking for distance, you want to find the sum of the *absolute value of 2 numbers* (or more). That is why you would want to add p and q.
Hope this helped. I'm really tired rn so sorry if this wasn't the best.
(9x +10) (15x-2) solve for x
Answers
Answer:
x=2
Step-by-step explanation:
15x-9x = 6x
10+2 = 12
6x=12
x=2
Answer: x=2
Step-by-step explanation:
9x+10 = 15x-2
-9x -9x
____________
10 = 6x-2
+2 +2
__________
12=6x
Divide
x=2
A drone costs $300 plus $25 for each set of extra propellers. What is the cost of a drone and 4 extra sets of
propellers? (a) Write a function that will showthe cost.
300 + 4(25) = 400
(b) What is the independent variable in this situation?
are
Answers
b) 300 would be the unchanged or control variable, 25x would be the independent variable and 400 would be the dependent variable.
Help pls for a grade
For a biology assignment, Melanie records the height of a plant over time.
The plant was 14 cm tall when she started the assignment. She notices that
the plant grows 7 cm every week.
Answers
Answer:
B (2,28)
Step-by-step explanation:
asap
pleeaseeeeeeeeeeeeeeeeeeeeeee
Answers
Answer:
Your answer is 89760!!!
hope this helps!!!
Answer:
89760
Step-by-step explanation:
17*5280=89760
Will Give Brainliest, Question is attached.
Answers
Answer:
The answer is in the photo
Hope i helped. :)
Btw it was cut off
Step-by-step explanation:
A ________ function specifies the relationship between the demand for a product LaTeX: x and the price of the product LaTeX: p.
Answers
Answer:
Price demand function
Step-by-step explanation:
The price demand function is the function in which there is a relationship between the demand and the price of the product
The Price demand function is
[tex]= Price \times demand[/tex]
[tex]= p \times x[/tex]
hence, the price demand function represents that there is a relationship that lies between the demand and the price
I don’t know where the point is please help me.
Answers
Wendy purchased 9 pizzas for x dollars. She spent a total of
$85.50. Which equation expresses how much Wendy spent on pizza? *
Answers
Answer:
x = $9.50
Step-by-step explanation:
85.50 / 9 = 9.5 sooo..
hope this helped!
David Egil and frances share money in the ratio 2:7:9 Egil gets £85 more than David work out how much they each get ?
Answers
Answer:
David gets £34, Egil gets £119 and Frances gets £153.
Step-by-step explanation:
Let the amount of money David gets be 2x, Egil be 7x and Frances be 9x.
7x = 2x + 85
7x - 2x = 85
5x = 85
x = 85 ÷ 5
x = 17
David (2x) = 2 × £17
= £34
Egil (7x) = 7 × £17
= £119
Frances (9x) = 9 × £17
= £153
Solve the following 3/4+2/8
Answers
Answer:
28
Step-by-step explanation:
3x4 is 12
2x8 is 16
16+12 is 28
Answer:
1
Step-by-step explanation:
In order to add fractions they have to have a common denominator.
In this case we can multiply the fraction 3/4 by 2 to get 6/8.
Now we can add them:
[tex]\frac{6}{8} + \frac{2}{8} = \frac{8}{8} = 1[/tex]
Therefore, the answer to the question is 1.
I hope this helps!!
- Kay :)
Carla has a bookcase with 4 shelves.she puts 6 bears in a row on each shelf. How many bears does she have? Draw a picture and write an equation to solve
Answers
Use proportional reasoning to determine the value of a in the proportion shown below.
25
a=1
a=25
a=10
a=15
it’s c
Answers
Answer:
c
Step-by-step explanation:
........-.--
Emma's family tooka road trip to Niagrara Falls. Emma slept through the last 21% of
the trip. If the total length of the trip was 600 miles, how many miles had they
travelled when Emma fell asleep?
Answers
Answer:
the last 126 miles emma slept
I will give brainliest!!!!!
Answers
Answer:
False
Step-by-step explanation:
This graph is not a function because it fails the vertical line test where you draw a vertical line through the graph and if the vertical line touches the graph more than once it fails the vertical line test which means it is not a function.
Hope this helps!