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pantera1 [17]
3 years ago
13

Help me with fractions. Please look at the picture before solving. Circle 1/5 of all the triangles. Mark X's on 2/3 of the trian

gles. There are 15 triangles by the way.

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
1/5 are 3 triangles
2/3 are 10 triangles
Amiraneli [1.4K]3 years ago
4 0
1/5 of the triangles is 3 triangles
2/3 of the triangle is 10
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Lorena calculated the slope of the linear function that is represented by the table of values as shown. x y –10 15 –8 27 –6 39 –
Anvisha [2.4K]

She made a mistake when she subtracted x1 from x2.

Step-by-step explanation:

Step 1 :

a)

The formula used by Lorena to calculate the slope between 2 points is correct

So the statement given in option 1 is not the reason for her mistake

Step 2:

b)

She has taken the fourth and fifth point and correctly used the x and y co ordinates to calculate the slope

Hence the statement in second option is not true

Step 3:

c)

While calculating the slope the denominator is -2 - (-4) . This gives 2 as the answer. But she has made a mistake in this subtraction giving -6 as the answer.

Hence she has made a mistake in subtracting x1 from x2 and this statement is true

Step 4:

d)

She has not made any mistake in subtracting y1 from y2. Hence this statement is not true

4 0
3 years ago
Read 2 more answers
A triangle has sides of lengths 12,14 and 19 . Is it a right triangle?
Scorpion4ik [409]

Answer:

It could be

Step-by-step explanation:

The calculation of sides of a rectangular triangle can be done by applying the Pythagorean theorem (the sum of the squares of the legs is equal to the square of the hypotenuse), both legs must form a right angle, and the value of the hypotenuse must be different from the legs. In the example what you give could be a value of one leg and the other of the hypotenuse.

8 0
4 years ago
Here are the test scores for 8 students in Mr. M's class. 87, 55, 96, 38, 83, 64, 44, 81. What is the percentage of these test s
natulia [17]

Answer:

75%

Step-by-step explanation:

Given that the score of 8 students in Mr. M's class are 87, 55, 96, 38, 83, 64, 44, 81, the scores less than 84 are 55, 38, 83, 64, 44, 81.

These means that 6 student had scores less that 84 of the 8 students hence the percentage of these test scores that are less than 84

= 6/8 * 100%

= 75%

This means that 75% of the students had scores less than 84

7 0
3 years ago
8c, please and thank you!
Ivan

Step-by-step explanation:

Please repost the question thanks

8 0
3 years ago
9) 7.5 x 12.5, How do I show this with long division?
MatroZZZ [7]

Answer:

1.6666666667

Step-by-step explanation: remove the decimal points.

3 0
3 years ago
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