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LiRa [457]
3 years ago
11

You have $20 to spend on taxi fare. The ride costs $5 plus $2.50 per mile. Write an inequality to determine how many miles you c

an ride for $20.
Mathematics
1 answer:
BARSIC [14]3 years ago
4 0

Answer: Maximum 6 miles

Step-by-step explanation: In total you have $20.

Base fare of taxi is $5.

Per mile cost is $2.50.

Your total cost is  where x is the number of miles. Since you're on a budget of maximum $20, the cost should be less than or equal to $20. We can write:

To find how many miles we can write, let's solve the inequality:

.

This means 6 is the maximum number of miles you can ride with $20.

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Mars2501 [29]

Answer:

-76

Step-by-step explanation:

A positive digit multiplied by a negative digit will result as a negative digit.

So,

6 · -8 = -48

Now if there is a problem where a number is added by a negative digit number, you turn the "plus" sign into a "negative" sign.

So,

- 48 + (- 28)

-48 - 28

If you subtract a negative by a negative, the answer will be negative BUT you have to ADD those two negative digits together and put the negative sign after.

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Step-by-step explanation:

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Stadiums maximum capacity is 66,655 people.if there are 61,364 people in the stadium what percent of it is unoccupied
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1. A rancher wants to build a rectangular pen, using one side of her barn for one side of the pen, and using 200m of fencing for
bezimeni [28]

Answer:

100m by 50m.

Step-by-step explanation:

Let the dimension of the rectangular pen be x and y

Area, A(x,y)=xy

Let the side opposite her barn = x

Since she wants to fence only three side

Perimeter = x+2y

Length of Fencing Available = 200m

Therefore: x+2y=200 \implies x=200-2y

We want to maximize the area of the pen, A(x,y).

Substituting x=200-2y into A(x,y)=xy

A(y)=y(200-2y)\\A(y)=200y-2y^2

To maximize A(y), we find its derivative and solve for the critical points.

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To ensure that this is a maximum, we use the second derivative test.

A''(y)=-4

This is negative and thus, y=50 is a maximum point.

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x=200-2y

x=200-2(50)

x=200-100

x=100m

Therefore, the dimensions of the pen that has the largest area are 100m by 50m.

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