MATHEMATICS MIDDLE SCHOOL

Work out the height of a triangle with a base 5m and area 20m squaredPlease explain in simple terms and what the answer is

Answers

Answer 1

Answer:

The formula for the area of a triangle is:

A=1/2*b*h

b=5m

A=20m

If we know both the area and the base of the triangle, we can solve for the height...

A=1/2*b*h

20=1/2*5*h

20=2.5*h

divide both sides by 2.5

8m=h

The height of the triangle is 8m

Answer 2

Answer: yes he is right it is 8m

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A car can travel 120km in 2hours. How long will it take the car to travel 300km

Answers

120 km ... 2 hours
300 km ... x hours = ?

If you would like to know how long will it take the car to travel 300 km, you can calculate this using the following steps:

120 * x = 300 * 2
120 * x = 600 /120
x = 600 / 120
x = 5 hours

Result: The car will travel 300 km in 5 hours.

The answer to you question is 5 hours

Determine the mean/
average of
5, 7, 10, 9,0

Answers

Answer:

6.2

Step-by-step explanation:

To determine the mean/average of 5,7,10,9,0 you would first need to add up all the numbers

5+7+10+9+0= 31

then divide by the amount of numbers you used which is 5 which equals 6.2

Answer:

The mean is 6.2

I added all of the numbers together to get 31, than you divide it by how many numbers there was,5, then u end up with your mean : 6.2

Step-by-step explanation:

Hope this helps a lot! Plz mark brainliest

There are nine students in a class two boys and seven girls if the teacher pics a group of four at random what is the probability that everyone in the group is a girl

Answers

Answer: 5/18

Step-by-step explanation:

Answer:

28% probability that every student in the group is a girl.

Step-by-step explanation:

Hope this helps :)

Alicia got 60 questions correct on her science test. If she received a score of 75% , how many questions were on the test?????

Answers

so since 60=75%
here's a hack. it's not real math
just find a factor of 100 like 2,4,5,10,20,25, or 50
75=3*25

so 60=3*20
3*20=3*25
divide both sides by 3
20=25%
we know that 25% is 1/4 of 100 so
multiply both sides by 4
80=100%

$x-guestions\ on\ the\ test\n\n75\%\cdotx=60\n\n0.75x=60\ \ \ \ |:0.75\n\nx=80\n\nThere\ were\ 80\ questions\ on\ the\ test.$