There are 38 five point questions and 30 two points questions.
Step-by-step explanation:
Given,
Worth of points in test = 250
Number of questions = 68
Let,
x represent the number of 5 points questions
y represent the number of 2 points question
According to given statement;
x+y=68 Eqn 1
5x+2y=250 Eqn 2
Multiplying Eqn 1 by 2
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 3
Putting x=38 in Eqn 1
There are 38 five point questions and 30 two points questions.
Keywords: linear equation, elimination method
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Answer:
Yes, reflecting a shape across the x-axis and then rotating it 90° clockwise about the origin gives the same results as reflecting it across the y-axis followed by rotating it 90° counterclockwise about the origin. This means these two sequences of transformations are equivalent.
Step-by-step explanation:
Answer:
3 segundos
Step-by-step explanation:
De la pregunta anterior, se nos dice que:
En un evento de natación, Mario hizo el curso en ¾ de minuto
1 minuto = 60 segundos
Por lo tanto = 3/4 de minuto
= 3/4 × 60 segundos
= 45 segundos
David completó el curso en 4/5 de un minuto.
1 minuto = 60 segundos
Por lo tanto = 4/5 de un minuto
= 4/5 × 60 segundos
= 48 segundos
La diferencia entre los dos competidores se calcula como
48 segundos - 45 segundos
= 3 segundos.
Por lo tanto, la diferencia entre los dos competidores = 3 segundos.
X/12 = -8
Solve for x by multiplying both sides by 12
X = -96
