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gayaneshka [121]
2 years ago
5

Question 5

Mathematics
1 answer:
zhenek [66]2 years ago
8 0

Answer:

The correct answer is 100

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Of the 145 students who took a mathematics exam, 80 correctly answered the first question, 81 correctly answered the second ques
jasenka [17]

Answer: 64

Step-by-step explanation:

the Kids that answered correct in any of questions 1 and 2 got at least one right so subtract the highest number which is 81 students by all the general amount of them, 145 that’s 64.

3 0
3 years ago
The graphs of two linear equations ax + by = c and bx - ay = c, where a, b, c are all not equal to zero.
marin [14]
Let us find the slopes of the two lines

ax+by=c, slope m1 = -a/b

bx-ay=c, slope m2 = b/a

m1*m2 = (-a/b)(b/a) = -1

Therefore the two lines are perpendicular so the answer is D
4 0
2 years ago
A rectangle has an area of 50X5Y5 and a length of 25X3Y which of the following represents the width of a triangle
Rufina [12.5K]

Answer:

2x²y⁴

Step-by-step explanation:

Area = W × L

W = A / L = \frac{50x^5y^5}{25x^3y} = 2x²y⁴

3 0
2 years ago
Read 2 more answers
How far will a skier travel in 2 1/2 minutes? Explain how you figured it out
Kay [80]

3600 meters 60 seconds would be 1440 traveled

and 1440 + 1440 + 720= <u>3600</u>

Hope this helps :)

8 0
3 years ago
What is the weight of a square if a triangle weighs 4 grams? Explain your reasoning
stellarik [79]

Answer:

8 grams

Step-by-step explanation:

The balance is in equilibrium, so the weights of the two sides are equal.

Let the weight of a square be s.

Left side: 2s + 4

Right side: s + 3(4) = s + 12

The weights are equal, so we set the two expressions equal.

2s + 4 = s + 12

s = 8

Answer: The weight of a square is 8 grams.

8 0
3 years ago
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