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nika2105 [10]
3 years ago
15

A car travelled 216km at an average speed of 48km/h.On the return journey the average speed increased to 72km/h.Calculate the av

erage speed,in km/h for the whole journey​

Mathematics
1 answer:
mel-nik [20]3 years ago
3 0

Answer:120km/hr

Step-by-step explanation:

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Mashcka [7]

Answer:

I am confused what is the question?

6 0
3 years ago
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There were 24 green jelly beans which made up 8%of all the jelly beans in the bag
Zanzabum
There are 300 jelly beans in the bag.


24÷6=4
4×2=8
5×2=10
5×6=30
30×10=300


Proof:
24/300 = ?/100
24×100=2400
2400÷300=8

Hope this helps! :)
6 0
3 years ago
What is the volume of the prism<br>​
Alexus [3.1K]

Answer:

the answer is 18

Step-by-step explanation:

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3 years ago
15 points please help!! :)<br> Find the value of x.
andriy [413]

Answer:

Question 4: -11

Question 5: -7

Step-by-step explanation:

Four

Every triangle has 180 degrees.

So all three angles add to 180

<em><u>Equation</u></em>

60 + 80 + x + 51 = 180

<em><u>Solution</u></em>

Combine the like terms on the left. This is the first time I've seen x be a negative value. Almost all of the time it isn't, which should make you wonder.

191 + x = 180    

Subtract 191 from both sides.

191 - 191 + x = 180 - 191

x = - 11

Five

If a triangle is a right triangle and one of the angles is 45, then so is the other one.

<em><u>Proof</u></em>

a + 45 + 90 = 180         Combine like terms on the left

a + 135 = 180                Subtract 135 on both sides.

a + 135-135=180-135    Combine the like terms

a = 45

<em><u>Statement</u></em>

That means 52 + x = 45 and here is another negative answer. Subtract 52 from both sides

52 - 52 + x = 45 - 52    Combine like terms.

x  = - 7

6 0
3 years ago
Read 2 more answers
What is the equation of the line that passes between (-1, -7) and has a slope of 2
cricket20 [7]

Answer:

y = 2x - 5

Step-by-step explanation:

3 0
3 years ago
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