1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Allisa [31]
3 years ago
7

The function y = 3.75 + 2.50(x - 3) can be used to determine the cost in dollars for a uber ride of x miles. What is the rate of

change of the cost in dollars with respect to the number of miles?
PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER.

Multiple choices:
A. $3.75 per mile
B. $6.25 per mile
C. $4.75 per mile
D. $2.50 per mile
Mathematics
2 answers:
coldgirl [10]3 years ago
8 0

Answer:

Option D is correct

$2.50 per mile

Step-by-step explanation:

Slope intercept form:

The equation of line is given by:

y = mx+b                      .....[1]

where,

m is the slope of the line.

b is the y-intercept

As per the statement:

The function y = 3.75 + 2.50(x - 3)

where, y can be used to determine the cost in dollars for a uber ride of x miles.

Using distributive property: a \cdot (b+c) = a\cdot b+ a\cdot c

we have;

y = 3.75+2.50x-7.50

⇒y = 2.50x-3.75

On comparing with [1];

m = 2.50

⇒rate of change of the cost in dollars with respect to the number of miles = $2.50 per mile

therefore, $2.50 is the rate of change of the cost in dollars with respect to the number of miles

stepan [7]3 years ago
4 0
<span>The cost of each mile is $2.50.

If you simplify the expression given you will get the following.
y = 3.75 + 2.50(x - 3)
y = 3.75 + 2.50x - 7.50
y = 2.50x - 3.75.

Knowing that x is the number of miles and 2.50 is the number being multiplied by, we know that the cost per mile is 2.50. </span>
You might be interested in
Simplify the expression:<br> 2x+1bx8
denis-greek [22]

Answer:

2x+8b

Step-by-step explanation:

First since 1 and 8b are on the same side mutiply them:

1bx8=8b

So our new equation is 2x+8b

7 0
2 years ago
Kelly Slater and Andy Irons are in a surf competition among 10 competitors.
Delvig [45]

Answer:

The probability that Kelly will place 1st and Andy will place 2nd is 1/90, or 1.11%.

Step-by-step explanation:

Since Kelly Slater and Andy Irons are in a surf competition among 10 competitors, to determine, if all surfers are at an equal surfing level, then what is the probability that Kelly will place 1st and Andy will place 2nd, the following calculation must be performed:

1/10 x 1/9 = X

0.1 x 0.11 = X

0.01111 = X

1/90 = 0.011111 = X

Therefore, the probability that Kelly will place 1st and Andy will place 2nd is 1/90, or 1.11%.

5 0
2 years ago
6. Nicole deposits $2,136 in a såvings account paying 5% interest rate. To the
ValentinkaMS [17]

Answer: $3,166

Step-by-step explanation:

8 0
3 years ago
Find the area of the shaded region in square units. Show your reasoning.
motikmotik

Answer:

40 square units

Step-by-step explanation:

First of all, lets say that square has side l, so, the area unit is l^2

the diagonal's square is l\sqrt{2}

CALCULATION OF TRIANGLES'S AREA (there are 4 triangles)

A_{triangles}=4*base*heigh*0.5=2*(l\sqrt{2} )(2l\sqrt{2} )=8l^2

CALCULATION OF MAIN SQUARE AREA

A_{square}=side*side=(4\sqrt{2} l)(4\sqrt{2} l)=32l^2

TOTAL AREA

A_{total}=A_{triangles}+A_{square}=8l^2+32l^2=40l^2

3 0
3 years ago
What is 25.7 in scientific notation?​
NISA [10]

Answer:

2.57 x 10^1

is the scientific notation of 25.7

8 0
3 years ago
Other questions:
  • All i need is K)<br> Please help me i need the answer
    11·2 answers
  • Which property of addition is shown? (3 + 9) + 8 = 3 + (9 + 8)
    12·1 answer
  • How many centimeters are in 2.37 meters???
    6·1 answer
  • Plz Answer this question fast, Thank You
    12·2 answers
  • What is 72 + 4x = 2x + 82
    8·1 answer
  • What percent of 821 is 25?
    15·1 answer
  • Is angle 1 the same as angle 2?
    6·1 answer
  • Charlie makes a rectangular fence around her rules so it will not get her. Hope she puts a fence around the room that was feet w
    5·2 answers
  • I’ll mark brainliest!!
    13·2 answers
  • Question 6
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!