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LUCKY_DIMON [66]
3 years ago
13

There are two classes. Class A has 18 more students than class B. If 1/8 of Class A were transferred to Class B, both classes wo

uld have the same number of students. How many students are there in each class?
Mathematics
1 answer:
Georgia [21]3 years ago
7 0

18

I hope this helps...

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AM is a median in △ABC (M∈ BC ). A line drawn through point M intersects AB at its midpoint P. Find areas of △APC and △PMC, if A
Snowcat [4.5K]

Answer:

The area of APC is 70m². The area of triangle PMC is 35m².

Step-by-step explanation:

Let the area of triangle ABC be x.

It is given that AM is median, it means AM divides the area of triangle in two equal parts.

\text{Area of }\triangle ACM=\text{Area of }\triangle ABM=\frac{x}{2}    .....(1)

The point P is the midpoint of AB, therefore the area of APC and BPC are equal.

\text{Area of }\triangle APC=\text{Area of }\triangle BPC=\frac{x}{2}          ......(2)

The point P is midpoint of AB therefore the line PM divide the area of triangle ABM in two equal parts. The area of triangle APM and BPM are equal.

\text{Area of }\triangle APM=\text{Area of }\triangle BPM=\frac{x}{4}        .....(3)

The area of triangle APM is 35m².

\text{Area of }\triangle APM=\frac{x}{4}

35=\frac{x}{4}

x=140

Therefore the area of triangle ABC is 140m².

Using equation (2).

\text{Area of }\triangle APC=\frac{x}{2}

\text{Area of }\triangle APC=\frac{140}{2}

\text{Area of }\triangle APC=70

Therefore the area of triangle APC is 70m².

Using equation (3), we can say that the area of triangle BPM is 35m² and by using equation (2), we can say that the area of triangle BPC is 70m².

\triangle BPC=\triangle BPM+\triangle PMC

70=35+\triangle PMC

35=\triangle PMC

Therefore the area of triangle PMC is 35m².

8 0
4 years ago
Solve this a interval notation. 5 greater than or equal to |4-2x|
rosijanka [135]
5≥|4-2x|
5≥4-2x≥-5
-1≤2x≤9
-0.5≤x≤4.5
x∈[-0.5;4.5]

4 0
3 years ago
1-73.
cricket20 [7]

36inch - 2 feet

72inch - 4 feet

144inch - 8 feet

18 X 2 = 36

1 + 1 = 2

18 x 4 = 72

1 x 4 = 4

18 x 8 = 144

1 x 8 = 8

8 0
3 years ago
A penguin is standing 3 feet above sea level and then<br> dives down 10 feet. What is its depth?
ValentinkaMS [17]

Answer:

7 feet below sea level

Step-by-step explanation:

he was at 3 then you subtract 10 feet because he dives.

7 0
3 years ago
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Find the quotient if the dividend is 2.26 · 108 and the divisor is 0.013. ([] = The Exponents) 5.75 × 10 [-11] 1.738 × 10 [6] 1.
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Answer:

the answer is the question B!!

Step-by-step explanation:

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4 years ago
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