Y varies inversely with x
means that y=k/x
with x=0.7 and y=80
we have 80=k/0.7
k=0.7x80=56
so the equation is
y=56/x
Answer:
Step-by-step explanation:
y + 5 = -2(x + 3)
y + 5 = -2x - 6
y = -2x - 11
I think A because 560×3=1,680
Answer:
Percentage loss of the number of trees is
.
Step-by-step explanation:
Given: After a storm,
trees out of
were left standing.
To find: What is the percentage loss of the number of trees?
Solution:
We have,
Total number of trees ![=180](https://tex.z-dn.net/?f=%3D180)
Number of trees left standing ![=135](https://tex.z-dn.net/?f=%3D135)
Therefore, loss of trees![=180-135=45](https://tex.z-dn.net/?f=%3D180-135%3D45)
We now that ![\text {Loss\%}=\frac{\text{Number of trees left}}{\text{Total number of trees}}\times 100 \%](https://tex.z-dn.net/?f=%5Ctext%20%7BLoss%5C%25%7D%3D%5Cfrac%7B%5Ctext%7BNumber%20of%20trees%20left%7D%7D%7B%5Ctext%7BTotal%20number%20of%20trees%7D%7D%5Ctimes%20100%20%5C%25)
![\implies \text {Loss\%}=\frac{45}{180}\times 100 \%](https://tex.z-dn.net/?f=%5Cimplies%20%5Ctext%20%7BLoss%5C%25%7D%3D%5Cfrac%7B45%7D%7B180%7D%5Ctimes%20100%20%5C%25)
![\implies \text {Loss\%}=\frac{450}{18} \%](https://tex.z-dn.net/?f=%5Cimplies%20%5Ctext%20%7BLoss%5C%25%7D%3D%5Cfrac%7B450%7D%7B18%7D%20%5C%25)
![\implies \text {Loss\%}=25 \%](https://tex.z-dn.net/?f=%5Cimplies%20%5Ctext%20%7BLoss%5C%25%7D%3D25%20%5C%25)
Hence, the percentage loss of the number of trees is
.
You should try to retake the picture can’t c anything