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mr Goodwill [35]
3 years ago
14

A teacher has 15 weeks in which to teach six chapters. Write and then solve an equation, showing all work, that represents the n

umber of lessons the teacher must teach per week if there is an average of 8.5 lessons per chapter.
Mathematics
1 answer:
Ahat [919]3 years ago
8 0

Answer:

3.4 lessons per week

Step-by-step explanation:

So to find the number of lessons for 6 chapters we need to multiply 8.5 by 6:

8.5 × 6 = x

x = 51 - so we need 51 lessons to finish six chapters

To find the number of lessons per week, we need to divide the number of lessons by the number of weeks:

y = 51 ÷ 15

y = 3.4

So the teacher needs 3.4 lessons per week to teach 6 chapters in 15 weeks.

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Definicion de Funcion Polinomica
ladessa [460]

Answer:

Ejemplos de funciones polinómicas son: , la cual es de grado 3, ya que el exponente mayor es 3. , que es una función polinómica de grado 2, o sea cuadrática, cuya gráfica es una parábola. ... Muchas veces a partir de la gráfica de un polinomio se puede deducir la ecuación de la función.

Step-by-step explanation:

6 0
3 years ago
Find the value of x so that the polygons have the same perimeter
mestny [16]

x - 2  + x + 4 + x - 2  + 4 - 4 = x + 3 + x + 4 + x + 5

4x + 4 = 3x + 12

4x - 3x = 12 - 4

x = 8

6 0
3 years ago
75% of a number is 120. What is 40% of the number? A. 36 B. 64 C. 138 D. 225
kakasveta [241]

Answer:

B.64

Step-by-step explanation:

75% of a number is 120.

Let's take "x" be the number.

75% of x = 120

75/100 * x = 120

0.75x = 120

x = 120/0.75

x = 160

So the number is 160.

Now we have to find the 40% of the number 160.

= 40/100 * 160

= 0.4 *160

= 64

40% of the number is B.64

Thank you.

4 0
3 years ago
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Please help me. I'm very confused with this question. Thanks
PSYCHO15rus [73]
I think its A but im not absolutely sure

4 0
3 years ago
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True or false all odd numbers are divisible by 3
Katen [24]
False

59/3= 19.666667

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