Answer:
Step-by-step explanation:
Since ABC is an equilateral triangle, thus AB=BC=AC=x, therefore
The perimeter of ΔABC=36
⇒AB+BC+AC=36
⇒x+x+x=36
⇒3x=36
⇒x=12
Thus, AB=BC=AC=12.
Now, Since ΔADC is isosceles triangle, therefore AD=DC=y.
Perimeter of ΔADC=40
⇒AD+DC+CA=40
⇒x+y+y=40
⇒12+2y=40
⇒2y=28
⇒y=14
Therefore, AD=DC=14
Thus, Length of sides of ΔABC are AB=BC=AC=12 and Length of sides of ΔADC are AD=DC=14.
It’s d, 1 - t
t + 3 - 2 - 2t
we can rearrange it as
t - 2t + 3 - 2
-t + 1 is the same as 1 - t
Summing to zero means the two numbers are additive inverses, i.e. negatives of each other. We choose the pair of negations:
Answer: -3, 3
Responder:
1/12
Explicación paso a paso:
Entonces multiplicamos 9 por 3 y obtenemos 27.
Luego multiplicamos 2 por 12 y obtenemos 24.
A continuación, le damos a ambos términos nuevos denominadores: 12 × 3 = 36.
Así que ahora nuestras fracciones se ven así:
27
36
-
24
36
Paso 2
Dado que nuestros denominadores coinciden, podemos restar los numeradores.
27 - 24 = 3
Entonces la respuesta es:
3
36
Paso 3
Por último, necesitamos simplificar la fracción, si es posible. ¿Se puede reducir a una fracción más simple?
Para averiguarlo, intentamos dividirlo por 2 ...
¡No! Así que ahora probamos con el siguiente número primo mayor, 3 ...
¿Son tanto el numerador como el denominador divisibles por 3? ¡Sí! Entonces lo reducimos:
3
36
÷ 3 =
<u>1/12 </u>
Answer:
see below
Step-by-step explanation:
Usually, we're concerned about the relationship of y to x. Here, the question is asking you to consider the relationship of x to y.
The easiest way to find the answer to this one is to check the given explanations to see which is true. You can pretty much ignore the first row of the table and just look at the second row where x=5 and y=15.
- it is NOT TRUE that x is 3 times y (5 is not 3 times 15)
- it is TRUE that x is 1/3 of y (5 is 1/3 of 15)
- it is NOT TRUE that x is 5 times y (5 is not 5 times 15)
- it is NOT TRUE that x is 1/5 of y (5 is not 1/5 of 15)
_____
If you know your multiplication tables, you know that 15 = 3×5, so ...
5 = 15/3
5 = (1/3) × 15
The relationship of these numbers should not be a mystery.
