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
jeka57 [31]
3 years ago
15

A cross-country skier reaches the 3-km mark of a race in 15 min and the 12-km mark 45 min later. Find the speed of the skier.

Mathematics
1 answer:
musickatia [10]3 years ago
4 0

Answer:

3 km every 15 mins

step-by-step explanation:

3*4==12

15+15+15= 45

You might be interested in
Help???????????,,,,,,,
Lemur [1.5K]

first convert the yards to feet....then add all of them together and subtract from 100

4 0
2 years ago
Read 2 more answers
If f(x) = 5x^2– 3 and f(x + a) = 5x^2+ 30x + 42,<br> what is the value of a ?
Andrei [34K]

Answer:

The zeros are x=0,3,-2

There is a multiplicity of 1 for all of them.

Step-by-step explanation:

8 0
2 years ago
Select all the correct answers.
amid [387]

Answer:

It costs $15 a month to play the video game.

The initial cost is $45.

The y-variable represents the cost in dollars.

The x-variable represents the number of months.

Step-by-step explanation:

If you break the function down, you're going to have:

<u>Total = Monthly Cost + Initial Cost</u>

In this case, 15x is your monthly cost, as you can think of x as the number of months meaning:

  • 15 for the first month (x = 1)
  • 30 for the second month (x = 2)
  • 45 for the third month (x = 3), and so on

Our initial cost is always going to be a set amount, thus our constant, $45.

This leaves y as our total, which makes sense, as it's all alone on one side of the equation, where as all the costs are bunched together on the right side.

Hope this helps!

6 0
2 years ago
Read 2 more answers
The variable y varies directly with the variable x.
Ivan

Answer:

D answer to dis question is 21

3 0
2 years ago
Part A<br> Rewrite 0.5 as an exponential expression with a base of 2.
koban [17]

Answer:

2^{-1}

Explanation:

05/10

Simplifying

1/2

or 2^-1

Hope this helps you. Do mark me as brainlist

4 0
2 years ago
Other questions:
  • Determine whether the function ƒ(x) = x4 − 4x2 − 1 is even, odd or neither.
    5·2 answers
  • What is 3 + x/-2 = 10
    10·2 answers
  • The United States of House of Representatives has 35 members more than four times the number of members in the United States Sen
    12·1 answer
  • Write the equation of the line with x-intercept 3 and passing through the point (5,4).
    7·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
  • 1 and 3/10 * 18 <br><br><br>How would you do this???
    7·2 answers
  • ABCD is a parallelogram.
    15·1 answer
  • Find the value of x.
    15·1 answer
  • 7. The owner of an ice cream stand needs to order wafle cones and sugar cones. There is
    11·1 answer
  • Steve reaches into a bag with 5 marbles 3 yellow marbles and 2 green marbles and randomly selects one the he puts the marble bac
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!