2 years ago

One hamburger and one coke cost $3.20. Three hamburgers and one coke cost $8.00. Find the cost of one hamburger.

Mathematics

2 answers:

Varvara68 [4.7K]2 years ago

5 0

Answer:

$0.80

Step-by-step explanation:

-3 (1x + 1y = 3.2)

3x + 1y = 8

----------------

-3x - 3y = -9.6

3x + 1 y = 8

-------------------

0x -2y = -1.6

÷ -2

-----------------

y = 0.8

one hamburger costs $0.80

Nikitich [7]2 years ago

3 0

I'm pretty sure it's A

You might be interested in

Josie saw a sign advertising 6 ears of sweet corn for $1.50. how much would 15 ears of corn cost?

Arlecino [84]

$1.50/6= $0.25
$0.25* 15= $3.75

5 0

2 years ago

X3 + 4x2 - 14x - 17/ X - 3

zlopas [31]

Answer:-54 i think or its 54 over x -3

Step-by-step explanation:

hope this helped you

7 0

3 years ago

Find the value of x for which f(x)=-2

enyata [817]

Answer:

x=2

Step-by-step explanation:

6 0

2 years ago

Find the 50th term of 0,3,6,9

nalin [4]

$\text{a}_1=0 \ \text{and} \ \text{a}_2=3\\\\\text{r}=\text{a}_2-\text{a}_1=3-0=3\\\\\text{a}_{50}=\text{a}_1+49\text{r}=0+49\cdot3=0+147=147\\\\\huge\boxed{\text{a}_{50}=147}$

7 0

3 years ago

Use a table to write a proportion<br><br> Am I correct, or do I need to switch 6 and 8?

olga2289 [7]

Answer:

Yes I believe that is correct.

Step-by-step explanation:

Im not sure why the m is first because it would be 180 miles first but I think you are correct, I think you should wait for another answer tho because I am not 100 percent sure. :)

4 0

2 years ago