A) -<span>2x +y=-1
B) 3x-y=-1</span>
Add the 2 equations
x = -2
<span>B) 3*-2 -y=-1
B) -6 + 1 = y
y = -5
</span>
<span>(−2, −5)
</span>
Answer:
Total walk she did around the pool every morning = 141.3
Step-by-step explanation:
Given - Kriti has a circular swimming pool in her house. The radius of the swimming pool is 22.5 cm. She walks one round every morning before diving in the pool.
To find - How far does she walk around the pool every morning?
Proof -
Given that, the swimming pool is circular in shape.
So,
1 round of circle = Circumference of circle.
As we know that,
Circumference = 
= 
= 141.3
∴ we get
Total walk she did around the pool every morning = 141.3
Answer:
<h2>11025</h2>
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about: </h3>
<h3>let's solve:</h3>





Answer:
80 students
Step-by-step explanation:
take 65 divide by 13, then x 5