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dem82 [27]
3 years ago
11

Please help me with this question. How can proportional reasoning help solve a problem?

Mathematics
1 answer:
andre [41]3 years ago
3 0
We can use proportional reasoning to solve some questions directly, such as which size of laundry detergent is the cheapest per load, or what the dimensions of the model car should be.
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An article was sold for Rs 30
katrin [286]

Answer:

Rs. 32.77

Step-by-step explanation:

  • At a loss of 24% sale price = Rs. 30
  • At a loss of 17% sale price = ?

----------

<u>Finding cost price:</u>

  • Sale price = cost - loss

<u>If cost = x:</u>

  • x - 24% = 30
  • 0.76x = 30
  • x = 30/0.76
  • x ≈ 39.48

<u>SP at a loss of 17%:</u>

  • 39.48 - 17% = 39.48*0.83 ≈ 32.77
5 0
3 years ago
Help me plzzzzzzzzzzz
dimulka [17.4K]

Answer:

Top row, third one from left to right

Step-by-step explanation:

Use test points:

when x = 0 , y = 2(0) - 4 = 0 - 4 = -4

(0, -4)

when y = 0, 0 = 2x - 4, 4 = 2x, 2 = x

(2, 0)

Top row, third one from left to right

7 0
3 years ago
Nour drove from the Dead Sea up to Amman and her altitude was 409 meters below sea level. When she arrived in Amman 2 hours late
kozerog [31]

Answer:

y=  704.5x - 409

Step-by-step explanation:

Complete question is : . Complete the equation for the relationship between the altitude and number of hours.

SOLUTION

By plotting altitude on y-axis and time or duration of travel on x-axis of the graph, we will have the the location of Nour at t = 0 will be represented by (0, -409)

when t = 2 hours location points will be  at (2, 1000).

As you know, at a constant rate her altitude is increasing , we will have a linear graph with equation y = mx + b --> eq(1)

Slope of the line is given by:

m= (y-y') / (x-x') => (1000+409)/(2-0)

m= 704.5

y-intercept 'b' is -409

Therefore, the eq(1) will become

(1)=> y=  704.5x - 409

Where, 'y' represents Nour's altitude(in meters) relative to sea level after 'x' hours

6 0
3 years ago
Please help me:( The volume of the above solid is
iren2701 [21]

Answer:

the volume of cylinder = πr²h

h = 5cm

r = 6cm

volume = π × 6² × 5

= π × 6 × 6 × 5

= 180πcm³

3 0
2 years ago
Solve for x. Round your answer to the nearest tenth.
oee [108]

Answer:

i think 120

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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