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Veseljchak [2.6K]
3 years ago
5

Uma escola possui 2500 alunos matriculados e 1200 foram selecionados para participar de um concurso de redação. Qual é a razão q

ue representa o total de alunos selecionados?
Mathematics
1 answer:
Inessa [10]3 years ago
4 0

Answer:

12:25

Step-by-step explanation:

Número de alunos matriculados: 2.500

Número de alunos selecionados: 1.200

A proporção que representa o número total de alunos selecionados em relação ao número de alunos matriculados é dada como:

Número de alunos selecionados: Número de alunos matriculados

= 1200: 2500

= 12 : 25

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Luda [366]
√896z^15/<span>√225z^6 

= </span>√896z^9/<span>√225

= </span>√64√14(z^4)<span>√z/15

= 8</span>√14(z^4)<span>√z/15

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7 0
3 years ago
Which fraction is equal to 12%
allochka39001 [22]

Answer:

3/25

Step-by-step explanation:

Simplify the fraction by using common factors of numerator and denominator. Now, 12% can be written as 12/100.

4 0
3 years ago
Po's dog weighs 24 and 65 lb Ricky's dog weighs 42 LB how much more does Ricky's dog weigh
arsen [322]
41 lb
work: 65 - 24 = 41
you're welcome
8 0
3 years ago
What does the pair of equations y = 3, z = 7 represent? In other words, describe the set of points (x, y, z) such that y = 3 and
earnstyle [38]

Answer:

the pair of equations y = 3, z = 7 represent the intersection of two plans, The set of points is (0,3,7) and the line is parallel to x axis.

Step-by-step explanation:

Consider the provided equation.

y=3 represents a vertical plane which is in xy plane.

Z=7 represents a horizontal plane which is parallel to xy plane

The both planes are perpendicular to each other and intersect.

y=3 and z=7 is the intersection of two plans, where the value of x is zero y=3 and z=7.

The set of points is (0,3,7) and the line is parallel to x axis.

7 0
3 years ago
Ava's birthday cake is about 11 7/10 cm long. her candles stick up from the cake an additional 5 4/10 cm. what was the total hig
Virty [35]

Total height of the cake and the candles is 17.1 cm

Step-by-step explanation:

  • Step 1: Convert the mixed fractions into decimal expressions.

11 7/10 cm = 117/10 = 11.7 cm

5 4/10 cm = 54/10 = 5.4 cm

  • Step 2: Find total height of the cake and the candles

Total height = 11.7 + 5.4 = 17.1 cm

3 0
4 years ago
Read 2 more answers
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