Respuesta :
Answer:
Metallic Balloons = 74
Bunches of Helium Balloons = 38
Step-by-step explanation:
The question basically asks for the number of "metallic balloons" sold and the number of bunches of "helium balloons" sold.
We will do it in our way. Let B be number o metallic balloons and H be number of bunches of Helium balloons.
Since Metallics cost 2 each and Heliums cost 3.5 per bunch and totaled sales is 281, we can write and equation as:
2B + 3.5H = 281
and, since they sold 36 MORE metallic than helium ,we can write an equation as:
B - 36 = H
We can put 2nd equation in 1st one and solve for B first:
[tex]2B + 3.5H = 281\\2B + 3.5(B-36) = 281\\2B+3.5B-126=281\\5.5B=407\\B = \frac{407}{5.5}\\B=74[/tex]
B = 74
Now, we find H:
H = B - 36
H = 74 - 36 = 38
H = 38
c) 2.00 b + 3.50 (b - 36) = 281
2 b + 3.5 b - 126 = 281
5.5 b + 126 = + 126
5.5 b = 407
b = 74
d) B = 74
74 - 36 = 38