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
WINSTONCH [101]
2 years ago
8

A car covered a certain distance at a speed of 24 mph. While returning, the car covered the same distance at a speed of 16 mph.

What was the average speed of the car for the entire journey?
Mathematics
2 answers:
igomit [66]2 years ago
7 0
Since the distances were the same you can find the average speed directly by adding the speeds then dividing by 2. No need to weight anything.

If we’re considering speed regardless of direction, the average speed is:

(24 + 16) / 2 = 40 / 2 = 20mph

However if direction matters, then one number has to be negative since the directions are opposite:

(24 - 16) / 2 = 8 / 2 = 4mph (in the positive direction)

Depending on the context, either of these could be your answer.
AlekseyPX2 years ago
3 0

Answer:

19.2

Step-by-step explanation:

do it yourself

You might be interested in
HELP PLEASE<br><br> ((ATTACHMENT TO HELP ANSWER, BECAUSE THERE'S REALLY NO QUESTION WITH IT))
BabaBlast [244]
Linear- blue graph, table 2, 2x-3y=7, y=3\x +2, y=-4
Nonlinear- y= 2x^2+ 4
7 0
3 years ago
Plz help me solve these problems
leva [86]

Answer: <em><u>CAN YOU PLS MARK AS BRAINLIEST??</u></em>

a.x=11/4

b.x=6

c.x=21/2

d.x=0

Step-by-step explanation:

-2+3x+x=9-x

-2+3x+x=9

4x=9+2

4x=11

x=11/4

when you move a numerator to the other side it becomes a denominator

x+2=3/4x6

x+2=3/24

x=8-2

x=6

5-2x-12=14

2x=14-5+12

2x=21

x=21/2

1/2x=-3-1/2x+4-1

1/2x+1/2x=-3+4-1

x=0

6 0
3 years ago
Evaluate the expression when x= -4. 2 x + 6x+9​
ExtremeBDS [4]

Answer:

The answer is -23.

Step-by-step explanation:

substitute x with -4. multiply and add regularaly.

6 0
2 years ago
Read 2 more answers
Y= -3x^2-24x-46 write in vertex form
mario62 [17]

ANSWER

y= -3{(x + 4)}^{2}  + 2

EXPLANATION

The given function is:

y= -3x^2-24x-46

Factor -3 for the first 2 terms.

y= -3(x^2 + 8x)-46

We add and subtract the square of the coefficient of x.

y= -3(x^2 + 8x +  {(4)}^{2} )  - - 3( {4)}^{2} -46

Factor the perfect square trinomial.

y= -3 {(x + 4)}^{2} )  + 48 -46

The vertex form is:

y= -3{(x + 4)}^{2}  + 2

6 0
3 years ago
Which expression represents the following calculation? Add the product of 7 and 5 to the quotient of 288 and 18.​
Nataly_w [17]

Answer: 288/18+7x5

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value
    14·1 answer
  • The function f is defined by f (x) = x-1.<br><br> Find f (z+5).
    15·1 answer
  • Because of the rainy season, the depth in a pond increases 3% each week. Before the rainy season started, the pond was 10 feet d
    9·1 answer
  • A consumer charges a $46.92 purchase on a credit card. The card has a daily interest rate of 0.039%. If the consumer pays off th
    13·2 answers
  • How is 0.025¯¯¯¯ written as a fraction in simplest form?
    12·1 answer
  • There are four girls, and four apples in a basket. Each girl took one apple, however, there was still one apple left in the bask
    13·1 answer
  • The perimeter of a rectangular swimming pool is 154m.Its length is 2m more than twice its breadth. What are the length and bread
    12·1 answer
  • The area of a square is 1,000 ft2. About how long is one<br> side of the square?
    11·1 answer
  • Can someone help plss
    8·1 answer
  • Jason builds doghouses for a pet store. Each doghouse is a wooden structure with a rectangular base that has an area of 21 squar
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!