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andrey2020 [161]
3 years ago
12

¿que es una division exacta de numeros enteros?

Mathematics
1 answer:
mixas84 [53]3 years ago
8 0

Answer:

La división de dos números enteros es igual al valor absoluto del cociente de los valores absolutos entre el dividendo y el divisor, y tiene de signo, el que se obtiene de la aplicación de la regla de los signos.

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What is x in x + 4 = -x - 4
VashaNatasha [74]

Answer: -4

Step-by-step explanation:

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4 years ago
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Does the associative property always, sometimes, or never hold for subtraction. Explain your reasoning using examples and non-ex
ollegr [7]
The associative property never works with subtraction.

For example:
2 - (7-8) <span>≠ (2-7) - 8
2-(-1)=3, but (-5)-8=-13
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A man can walk from A to B and back in a certain time at 7 km/hr.If he walks from A to B at 8 km/hr and returns from B to A at 6
DerKrebs [107]
We calculate the speed by dividing the distance over time:
s = d/t
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But we are told that;
7 = d/t
7 = 2d/(t + 2)
that is, the first equation say that at speed 7 km/h a distance d is walked in a time t
the second equation say that at a average speed of 7 (that is 8 on one way and 6 in the other: 8 + 6 = 14, half of it), twice the distance is walked in a time equal to the first time plus 2 minutes.
So we have a system of linear equations, 2 of them with two unknowns, we can solve that:
7 = d/t
7 = 2d/(t + 2<span>)
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7t = d
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4 0
4 years ago
4. A representative sample of 50 students from a high school is surveyed. Each student is asked what science class
vesna_86 [32]

Answer:

A, B, C

Step-by-step explanation:

The total number of students is the sum of the students taken each course. Hence the total number of students is:

Total number = 6 + 10 + 18 + 4 + 12 = 50 students

A) The percentage of students offering chemistry = (number of students offering chemistry / total number of students) * 100%

percentage of students offering chemistry = (10 / 50) * 100% = 20%

Option A is correct

B) number of students taking health science = 12, while number of students taking physics = 6. Hence About twice as many students are taking Health Science  than are taking Physics.

Option B is correct.

C) The percentage of students taking physic = (6 / 50) * 100% = 12%

Therefore for 150 students, the number of students taking Physics = 12% * 150 = 0.12 * 150 = 18

Option C is correct

D) The percentage of students taking earth science = (4 / 50) * 100% = 8%

Therefore for 25 students, the number of students taking earth science = 8% * 25 = 0.08 * 25 = 2

For every 150 students we could predict that 18  of the students are taking Physics.

Option D is correct

5 0
3 years ago
20 POINTS What is the area of the figure pictured below? the figure is not drawn to scale :)
Lostsunrise [7]

Answer:

b. 158cm^2

Step-by-step explanation:

A=(b)(h)

(7)(17)=119

A=1/2(b)(h)

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8 0
3 years ago
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