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
Dmitriy789 [7]
2 years ago
14

Two cartons of milk and one sandwich costs $3.00, and two sandwiches cost $4.20 without milk. Find the cost of one carton of mil

k.
Mathematics
2 answers:
Mkey [24]2 years ago
6 0

Answer:

$0.45 or 45 cents

Step-by-step explanation:

Let x = carton of milk

     y = sandwich

2x + y = 3

2y = 4.2

Let's use the substitution method to solve this

First, divide both sides by 2 in the second equation

2y/2 = 4.2/2

y = 2.1

Substitute the new y into the first equation

2x + 2.1 = 3

Now subtract 2.1 from both sides

2x + 2.1 = 3

     - 2.1   - 2.1

2x = 0.9

Divide both sides by 2 to isolate the x variable

2x/2 = 0.9/2

x = 0.45

morpeh [17]2 years ago
5 0

Answer:

0.90 cents

Step-by-step explanation:

one sandwich costs $2.10

so subtract that from the $3.00

which is $0.90

You might be interested in
Can someone please help me on this question?
katovenus [111]

Answer:Hope this helps

6n=-3n-18

9n=-18

n=-2

3 0
2 years ago
Read 2 more answers
Sheila has 11
RSB [31]

Answer:

6

Step-by-step explanation:

11 1/2 = 11.5

2 1/4 = 2.25

11.5 ÷ 2.25= 5.11

she needs 6 containers because you round up 5.11 to 6.

if your doing the work in fractions rather decimals let me know and I can explain it that way too

5 0
2 years ago
A recipie needs 5/8 cups of sugar. What percent of a whole cup is that?
katen-ka-za [31]

Answer: 62.5 percent

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A building has 4 stories that are each 15 feet high. A scale drawing has the height of the building at 5 inches.
prohojiy [21]
1: 144 because 
4 * 15 = 60 ft total height = 720 in total height
5: 720 = 1: 144
7 0
3 years ago
Read 2 more answers
5x-6y=-8 solve the equation
Setler79 [48]

Answer:

<u>Solved for y:</u>  y = 4/3 + 5/6x

<u>Solved for x:</u>  x = 6/5y - 8/5

Step-by-step explanation:

Solving for y

<u>Step 1:  Subtract 5x from both sides</u>

5x - 6y - 5x = -8 - 5x

-6y = -8 - 5x

<u>Step 2:  Divide both sides by -6</u>

-6y / -6 = (-8 - 5x) / -6

y = 4/3 + 5/6x

Solving for x

<u>Step 3:  Add 6y to both sides</u>

5x - 6y + 6y = -8 + 6y

5x = 6y - 8

<u>Step 4:  Divide both sides by 5</u>

5x / 5 = (6y - 8) / 5

x = 6/5y - 8/5

5 0
3 years ago
Other questions:
  • captain ishaan has a ship, the H.M.S Crimson Lynx. the ship is four furlongs from the dread pirate Michael and his merciless ban
    11·2 answers
  • I need help on this. (the middle one)
    13·2 answers
  • Y decreased by 9is 8
    5·1 answer
  • If a1=47 and d=-5 find a12
    6·1 answer
  • Arithmetic sequence for 8 11 14 17 expression
    5·1 answer
  • Identify the construction at the figure represents
    15·1 answer
  • A soccer league has $86 to buy new soccer balls. If each ball costs $7, how many balls can the league buy? ​
    7·2 answers
  • Find the value of P that makes the equation true
    6·1 answer
  • 7(3+5) = 8 + ___<br><br> What number or expression could fill in the blank that would make this true
    11·2 answers
  • Write 34% as a fraction in simplest form
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!