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
jonny [76]
2 years ago
15

At a local fair, a hamburger cost $2.50, and a drink cost $1.50. Write an expression that represents the cost of x number of ham

burgers and y number of drinks.
Mathematics
2 answers:
TEA [102]2 years ago
8 0

Answer:

2.50x + 1.50y = z

Step-by-step explanation:

z is the cost of the hamburgers and drinks.

x and y represent the number of hamburgers and drinks.

faltersainse [42]2 years ago
3 0

Answer:

y= 2.50

Step-by-step explanation:

You might be interested in
Find the product of 44.6 and 2.34.
PolarNik [594]

Answer:

104.364

Step-by-step explanation:

Product means multiplication so:

44.6×2.34 = 104.364

5 0
2 years ago
Solve using elimination<br><br> 2x+5y=34<br> x+2y=14
Darina [25.2K]

2x + 5y = 34

x+2y = 14


Multiply the second equation by two to create like terms for one variable.

2(x+2y = 14)

2x + 4y = 28


2x + 5y = 34

2x + 4y = 28 -- Subtract.


y = 34.28 = 6


Solve for x


x + 2(6) = 14

x + 12 = 14

x = 2


Check:

2 + 2(6) = 14

2 + 12 = 14

14 = 14


Answer:

X = 2

Y = 6

8 0
3 years ago
Abby went to the store to buy ice cream for her party. Each box costs $3. She has a coupon for 20% off her total. If Abby buys 3
ollegr [7]

Answer: 7.2$

hope it helps :)

step-by-step explanation:

Cost of each box = 3$

Cost of 3 boxes without 20% coupon = 9$

With 20% off Coupon = 9 by 100 multiplied by 20

                                     (the zero's cut with each other leaving)

                                     = 9 by 10 multiplied by 2

                                     (9 multiplied by 2 = 18)

                                     = 18 by 10

                                     (18 divided by 10 = 1.8)

                                     = the 20% of 9$ is equal to 1.8

                                        when subtracted with the total cost leaves 7.2$

4 0
3 years ago
Find all roots given that x = 3 + i is a solution. <br><br> x^4 - 10x^3 + 29x^2 - 10x - 50 = 0
Basile [38]

Answer:

x = 3 + i, x = 3 - i , x = 5 , and x = -1

Step-by-step explanation:

We know that given the polynomial with real coefficients, if x = 3 + i is a root, then x = 3 - i must be another root. These two roots can combine multiplicative factors as shown:

(x - 3 - i) * (x - 3 + i) = (x-3)^2 + 1 = x^2 - 6 x + 9 + 1 = x^2 - 6 x + 10

Then we divide the given polynomial: x^4 - 10x^3 + 29x^2 - 10x - 50  by the quadratic one we just found, and get a perfect division:

{x^4 - 10x^3 + 29x^2 - 10x - 50} / {x^2 - 6 x + 10} = x^2 - 4 x - 5

which can be factored out by grouping as shown below:

x^2 - 4 x - 5 = x^2 - 5 x + x - 5 = x (x - 5) + x - 5 = (x - 5 ) * (x + 1)

then the full factor form of the quartic polynomial given is:

(x - 3 - i) * (x - 3 + i) * (x - 5 ) * (x + 1)

and therefore the associated roots are:

x = 3 + i, x = 3 - i , x = 5 , and x = -1

5 0
3 years ago
A lunch bill is $12 before tax. If the tax on the bill is 7.5% what is the total cost of the lunch including tax?
nikitadnepr [17]

Answer:

\boxed{ \bold{ \huge{\boxed{ \sf{ \: 12.9 \: \:  dollars}}}}}

Step-by-step explanation:

Given,

Cost without tax = $ 12

Tax percent = 7.5 %

Cost including tax = ?

<u>First</u><u>,</u><u> </u><u>finding </u><u>the</u><u> </u><u>tax</u><u> </u><u>amount</u><u> </u><u>:</u>

\sf{tax \: amount \:  =  \: 7.5 \: \% \: of \: 12}

⇒\sf{tax \: amount =  \frac{7.5}{100} \times 12}

⇒\sf{tax \: amount = 0.9} dollars

<u>Finding </u><u>the</u><u> </u><u>total</u><u> </u><u>cost</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>lunch</u><u> </u><u>including </u><u>tax</u><u> </u><u>:</u>

⇒\sf{total \: cost \:  =  \: 12 + 0.9}

⇒\sf{total \: cost \:  =  \: 12.9} dollars

Hope I helped!

Best regards ! :D

6 0
3 years ago
Read 2 more answers
Other questions:
  • F(x) = x3 - 7 find(3)
    12·1 answer
  • What is the justification for -3x+7=7x-3
    7·1 answer
  • Show calculations for each of the ratio table
    10·1 answer
  • Ya yeet i need help last question
    6·2 answers
  • Explain why x=4 is not in the domain of the function f(x)=√x-5 ?
    6·1 answer
  • A quadirateral has vertices at (-2, 1), (0, 4), (5, 2) and (1, -1). Do the diagonals have the same midpoint? Justify your answer
    6·1 answer
  • - 7th Grade Work -<br><br> Please write your answer like this:<br><br> 1.<br> 2.<br> 3.
    7·2 answers
  • 20
    15·1 answer
  • If 3n=3a-6,which inequality below will make n a positive number?
    11·1 answer
  • Please help me :)<br><br><br> ty ty
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!