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Viefleur [7K]
3 years ago
7

Cab A charged $5x + 20 for a ride to the

Mathematics
1 answer:
Svet_ta [14]3 years ago
7 0

Answer:

Cab B charged more

It charged $(30-x) more

Step-by-step explanation:

Here, we want to know which of two cabs charged more for a ride from the airport to the mall.

To know the cab that charged more, we shall be substituting any same value of x in both of the fees

Let’s say x is 10

Thus 5x + 20 becomes 5(10) + 20 = 50 + 20 = 70

while 4x + 50 becomes 4(10) + 50 = 40 + 50 = 90

Clearly we can see that 4x + 50 is greater then 5x + 20, so we can conclude that 4x + 50 is a greater fee

Now since we know the one that’s higher, we can now know the value by which it is higher

That would be (4x + 50)-(5x + 20)

= 4x + 50 -5x -20

= 4x-5x + 50-20

= -x + 30 or simply 30-x

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Find the value of $B - A$ if the graph of $Ax + By = 3$ passes through the point $(-7,2),$ and is parallel to the graph of $x +
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Answer:

-6

Step-by-step explanation:

We know that since Ax + By = 3 passes through (-7, 2), then if we plug -7 in for x and 2 in for y, the equation is satisfied. So, let's do that:

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Plug 3A in for B into the equation we had where -7A + 2B = 3:

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So, B = -9 and A = -3. Then B - A is:

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The answer is -6.

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