Area = b × h
= 10 × 17
= 170 meters2
Ths would be (220 - 315 )* 100
-------------
315
= - 30 % to nearest percent
Answer:
B = 49/5 - 7a/5
A = = -5b/7 + 7
Step-by-step explanation:
Given that,
7a+ 5b= 49
Solution:
<em>Solving for a:</em>
Add -5b to both sides:
Divide both sides by 7:
Hence,a = -5b/7 + 7.
<em>Solving for b:</em>
Add -7a to both sides:
Divide both sides by 5:
Hence,b = 49/5 - 7a/5.