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borishaifa [10]
3 years ago
7

At a concession stand five hotdogs and two hamburgers cost 8.00 two hotdogs and five hamburgers cost 9.50 find the cost of one h

ot dog and one hamburger
Mathematics
1 answer:
Svetach [21]3 years ago
6 0
Think of this situation as a system of equations.

let y be the price of hotdogs
let x be the price of hamburgers

5y + 2x = 8
2y + 5x = 9.50

now use your solution method of choice
substitution, elimination, matrices, etc
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Miss has a sheet of wrapping paper 85cm in length and 60 cm in width. She cuts the paper into rectangular pieces of length 20 cm
dalvyx [7]

Answer:

Part a - 25 pieces

Part b - 4 sheets

Step-by-step explanation:

<u>Part a</u>

Think of this in terms of how many "units" can the total paper be cut into. Easiest way to keep track of units is by their area. In other words, take the total area and see how many unit areas fit into it:

Number of units = total area / unit area

N = (85 x 60) / (20 x 10)

N = 5100 / 200

N = 25.5

Therefore the greatest number of pieces the paper can be cut into is 25 units (the 0.5 doesn't count since it's not a full pieces).

<u>Part b</u>

Again, back to units. This time the "total" is 100, and our unit size is 25.5. So:

Number of units = total gifts / gifts per unit

N = 100 / 25.5

N = 3.9

Therefore 4 sheets of wrapping paper will be needed (you need to round the 3.9 up because wrapping paper sheets only come in whole numbers for the purposes of this question).

7 0
3 years ago
Which expressions show the expanded form for 50.029?
Anna [14]
They all show 50.029
The correct answers are:
A.) <span>5 × 10 + 0 × 1 + 0 × 1/10 + 2 ×1/100 + 9 × 1/1000 
Sorry.
This is all I can find correct
Its a little hard when you post the tenths, hundredths, and thousandths as fractions, but A is all I can find.

</span>
8 0
3 years ago
fred can complete a work in 6 days and Paul can complete a work in 3 days. if fred and Paul work together, how many days can the
defon

Answer:

I think its 3 or 2 days bc if paul can get two works done by the time fred can get one done then the days should be divided.

Step-by-step explanation:

3 0
3 years ago
Solve each equation. Show your thinking.<br><br> a. 5x-10=30<br><br> b. 3x+8=21
Ksenya-84 [330]
Add ten from both sides and then divide 40 of 5x its 8
B subtract 8 from both sides 13 divide by 3 answer is 13/3
7 0
3 years ago
Read 2 more answers
X-5 is greater than or equal to-8​
Sliva [168]

Answer:

greater than is the answer

3 0
3 years ago
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