Answer:
x = 31 and x = 15
Step-by-step explanation:
(a)
(3x + 31) and (2x - 6) are a linear pair and sum to 180° , then
3x + 31 + 2x - 6 = 180
5x + 25 = 180 ( subtract 25 from both sides )
5x = 155 ( divide both sides by 5 )
x = 31
(b)
3x and (4x - 15) form a right angle and sum to 90° , then
3x + 4x - 15 = 90
7x - 15 = 90 ( add 15 to both sides )
7x = 105 ( divide both sides by 7 )
x = 15
Answer:
1.5 and - 0.5
Step-by-step explanation:
Marta wants to make 1/3 of her mother’s recipe, which calls for 2 1/2 pounds of chicken. To find out how much chicken Marta needs to use, we must multiply 1/3 by 2 1/2.
However, first we need to turn 2 1/2 into an improper fraction to make the multiplication simpler. To do this, we should multiply the unit (2) by the denominator (2) and add the numerator (1).
2*2=4, 4+1 = 5, therefore, 2 1/2 = 5/2
Now, we have to multiply 5/2 by 1/3. To do this, we just multiply the two numerators and the two denominators together.
5/2 * 1/3 = 5*1/2*3=5/6
Therefore, Marta needs to use 5/6 pounds of chicken for the recipe.
Hope this helps!
Bro no sé esto, pero si tradujo esto en Google eres el mejor jodido
I believe it’s B, I’m so sorry if I’m wrong