The first system of equations has infinite solutions because you can write one equation as a linear combination of the other.The second system of equations has no solution because mathematically an incoherence results -14 = -2 / 7I attach the solutions for greater understanding.
x-4y=12; 5x-20y=60 --> infinitely many
y-7x=-14; 7y-49x=-2 --> none
Answer:
Answer: The only correct option is the first one (top left)
Step-by-step explanation:
let's take each conclussion and see if it is true or not.
a) the number of students that live more than a mile away from school is 42
Of those, 32 ride a bike to reach the school.
The proportion is p = (32/42)*100% = 76
<h3> <u>Answer</u><u> </u><u>:</u></h3>
<h3><u>Explaination :</u></h3>
In the question it is given that the length is 4 cm more than the width so let us assume the width as x.
Therefore,
- Length (l) = 4 + x
- Breadth = x
As we know the formula of calculating the perimeter of rectangle is,
Here,
- P is perimeter
- l is length
- b is breadth
Putting their respective values,
=> 14 = 2 (x + 4 + x)
=> 14 = 2 × (x + 4 + x)
=> 14 = 2x + 8 + 2x
=> 14 = 4x + 8
=> 14 - 8 = 4x
=> 4x = 6
=> x = 6 / 4
=> x = 3 / 2
=> x = 1.5
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The answer to the question is 20.8
Answer:
5 and 1/2
Step-by-step explanation: