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
Bezzdna [24]
3 years ago
6

motorcycle cover 210 kilometre distance with 5 l of petrol how many kilometre does it cover with 8 litre of petrol? how much pet

rol is needed to cover 588 kilometre​
Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0

Answer:

A: 336 km

B: 14 L

Step-by-step explanation:

Use a proportion

210 km / 5 L = x / 8L         Cross multiply

8*210  = 5 x

1680  = 5x

x = 1680 / 5

x = 336 km

===============

210 /5 = 588/x                   Cross multiply

210x = 588 * 5

210x = 2940                     Divide by 210

x = 2940/210

x = 14 L

You might be interested in
It takes Matt 6 minutes to swim 12 laps in the pool. How many laps could he swim in 9 minutes?
pochemuha

Answer:

18

Step-by-step explanation:

6*2=12

9*2=18

Two laps per minute

4 0
3 years ago
Read 2 more answers
I need helps someone
umka21 [38]
The answer is 3/2,-6
5 0
3 years ago
Read 2 more answers
A scientist need 10 L of a 20% acid solution for an experiment where she had only a 5% solution and a 40% solution to the neares
andrezito [222]

Answer:

Amount of 5% solution = 5.7 Litres

Amount of 40% solution = 4.3 Litres

Step-by-step explanation:

First, of all, let x be the amount of 5% solution used

Since, the scientist needs 10 L of solution, then;

Let 10 - x be the amount of 40% solution used

Now, we are told that she needs 10 L of a 20% acid solution.

This means that;

5%x + 40%(10 - x) = 20%(10).

Simplifying this gives;

0.05x + 0.40(10 - x) = 0.20 × 10

Expanding the bracket gives;

0.05x + 4 - 0.4x = 2

0.4x - 0.05x = 4 - 2

0.35x = 2

x = 2/0.35

x ≈ 5.7 litres

Thus, she will need to mix 5.7 liters of the 5% solution.

Since 10 - x be the amount of 40% solution used , then;

the amount of 40% solution = 10 - 5.7 = 4.3 litres

4 0
3 years ago
The diameter of a circle is 7 cm. What is the circumference of the circle?( Use π = 22/7) *
andrew11 [14]

Answer:

2πr

2(22/7)(3.5)

<u>22</u>

Step-by-step explanation:

8 0
3 years ago
Solve for x rounded to the nearest hundredth: 10 - 3x = 5
igomit [66]

Answer:

x = 5/3

Step-by-step explanation:

You ALWAYS want your term to be by itself!! So what you need to do is move your constant away from it.

Step 1: Adjust as needed, subtract 10 from both sides of your equation. It should end up like this.

-3x = 5 - 10

Step 2: Solve as needed before continuing equation.

-3x = -5

Step 3: Now you need to get your term by itself. You should divide -3 on both sides of your equation so you should get something like this.

x = -5 / -3

Step 4: You're basically done now! Just simplify! NEGATIVES CROSS EACH OTHER OUT!!!

x = 5/3 OR 1.6

<em>KEY:</em>

<em>Negative and Negative = Positive</em>

<em>Negative and Positive = Negative</em>

<em>Positive and Positive = Positive</em>

4 0
3 years ago
Other questions:
  • What is the square root of 75 in the simplest form
    7·2 answers
  • Write the quadratic equation in general form. x2 = 9x
    13·1 answer
  • Someone plz help me with these 2 problems! thank you
    9·1 answer
  • 0.27 x 0.03 PLEASE EXPLAIN THE ANSWER! HOW DID YOU GET THE SUM??<br><br><br> I NEED HELP PLEASE!
    8·2 answers
  • to rationalize the denominator of 5 - sqrt. 7/ 9 - sqrt. 14, you should mulitply the expression by which fraction?
    6·1 answer
  • The local taxi charges $3.00 plus $1.25 for every mile traveled. Determine whether the function is proportional or non proportio
    10·2 answers
  • Find the distance between the two points.<br> . (2, 10), (5, -4)
    14·1 answer
  • Pls give an actuel answer to this question. Thx :). WIll give brainest.
    8·2 answers
  • Evaluate the expression<br> please help me
    13·2 answers
  • Comparing which two values tests whether the way feedback was submitted had an impact on whether or not feedback was
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!