Answer:
So here is the answer.
We represent h = hardwood and p = pine bark
Here is the equation: h + p = 176
2.75p + 3.50h = 520
Next, p = 176 -h (substitute)
2.75 (176-h) + 3.5h = 520
484 -2.75h + 3.5h = 520
3.5h-2.75h = 520 -484
0.75h = 36 (divide both by 0.75)
h = 48
Therefore, the number of hardwood sold is 48.
h + p = 176
p = 176-48
p= 128
The number of pine bark sold is 128.
Hope this helps :)
Step-by-step explanation:
Answer:
1 : 2 :3
Step-by-step explanation:
1/4 apple juice
2/5 orange juice
1/4 - 2/5
20 - 40 /20 = 20/20
= 1
answer = 1 :2 : 3
Answer:
4.5 hours
Step-by-step explanation:
t=d/r
315/70=4.5
We have that
<span>4 1/ 3
−1 1/3 </span>
the answer in the attached figure