And this one also,please help me this is yr7 homework
1 answer:
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We know that
<span>the length of Q is 25% more than the length of p
</span>so
length Q=1.25*40--------> 50 cm
<span>the area of Q is 10% less than the area of p
Area Q=50*y
Area P=40*x
so
50*y=0.90*[40*x]---------> 50*y=36*x-------> x/y=50/36---> 25/18
the answer is
the ratio </span><span>x:y is
</span><span>25:18</span>
<span>the length of Q is 25% more than the length of p
</span>so
length Q=1.25*40--------> 50 cm
<span>the area of Q is 10% less than the area of p
Area Q=50*y
Area P=40*x
so
50*y=0.90*[40*x]---------> 50*y=36*x-------> x/y=50/36---> 25/18
the answer is
the ratio </span><span>x:y is
</span><span>25:18</span>
Answer: Quantity of Dark Chocolate used = 15 lb
Quantity of Milk Chocolate used = 35 lb
Step-by-step explanation:
Let x = Quantity of Dark Chocolate.
y = Quantity of Milk Chocolate.
As per given , we have the following system of equations:
Multiply equation (1) by 2 , we get
Eliminate equation (3) from equation (2) , we get
Put x= 15 in (1) , we get
⇒ y=35
Therefore , Quantity of Dark Chocolate used = 15 lb
Quantity of Milk Chocolate used = 35 lb