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Soloha48 [4]
3 years ago
8

2 supra 3 + 1 supra 4

Mathematics
1 answer:
Paha777 [63]3 years ago
4 0
2/3 + 1/4 .....common denominator is 12
8/12 + 3/12 =
11/12 <==
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timf 3 số tự nhiên lẻ liên tiếp, biết tích của hai số lớn nhất lớn hơn 6 lần số bé nhất là 177 đơn vị
Murljashka [212]

Answer:

13, 15, 17

Step-by-step explanation:

Gọi 3 STN lẻ cần tìm là a, a+2, a+4 (a thuộc N*)

Theo đề bài ta có:

(a + 2)(a + 4) - 177 = 6a

=> a^2 + 4a + 2a + 8 = 6a + 177

=> a^2 + 6a + 8 = 6a + 177

=> a^2 + 6a - 6a = 177 - 8 (chuyển vế)

=> a^2 = 169 = 13^2

=> a = 13

=> a+2 = 15, a+4 = 17

Vậy 3 STN lẻ cần tìm là 13, 15, 17

7 0
3 years ago
Jenny has already taken 23 quizzes during past quarters and she expects to have 1 quiz during each week of this quarter each of
soldi70 [24.7K]
For the new quarter: 3 quizzes
all past quarters and current quarter in total: 26 quizzes
8 0
3 years ago
Which sequence of transformations would produce two figures that are simular but NOT congruent to eachother?
patriot [66]
A because the reflection is across the y axis
4 0
3 years ago
What is the solution for this equation? |-4x +7 | = 15
OverLord2011 [107]
X= -2 because since it has the absolute value symbol it’s actually 4 and not -4 so 4x2= 8 and 8+7=15
5 0
3 years ago
Please help me with this question.
mixas84 [53]

Answer:

B

Step-by-step explanation:

In a triangle, the sum of any two sides must be bigger than the third.

For the first one, 10+20=30 is not greater than 30, so this is not correct.

For B, 122+137 = 259 > 257, 257+137>122  , and 257 + 122 > 137. This works

For C, 8.6 + 2.7 = 11.3 < 12.2, so this does not work

For D, 1/6 + 1/5 = 5/(6*5) + 6/(6*5) = 5/30 + 6/30 = 11/30 < 1/2 = 15/30, so this does not work

7 0
3 years ago
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