Step-by-step explanation:
Calculate the cost per ounce of each can by dividing the cost of the can by the size of the can.
For example, $0.89 / 10 oz = $0.089/oz.
The 15oz can has the lowest cost per ounce.
Answer:
a) All dogs have fleas.
X the set of all animals
D(y)=y is a dog
F(y)=y has fleas
∀X ( D(x) → F(x) )
¬∃X ( D(x) ^ F(x) )
b) There exists a horse that can add.
X the set of all animals
H(y)=y is a horse
A(y)=y can add
∃X ( H(x) ^ A(x) )
∀X ( H(x) → ¬A(x) )
c) Every koala can climb.
X the set of all animals
K(y)=y is a koala
C(y)=y can climb
∀X ( K(x) → C(x) )
¬∃X ( K(x) ^ C(x) )
d) No monkey can speak French.
X the set of all animals
M(y)=y is a Monkey
F(y)=y can speak French
∀X ( M(x) → ¬F(x) )
∃X ( M(x) ^ F(x) )
e) There exists a pig that can swim and catch fish.
X the set of all animals
P(y)=y is a pig
S(y)=y can swim
C(y)=y can catch fish
∃X ( P(x) ^ ( S(x) ^ C(x) )
∀X ( P(x) → ( ¬S(x) v ¬C(x) ) )
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Define x and y :
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Let x the number of 2.5M downloads.
Let y the number of 4.6M downloads.
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Construct Equations :
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There was a total of 1230 downloads.
⇒ x + y = 1230
Total downloaded size was 4797M.
⇒2.5x + 4.6y = 4797
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Find x and y :
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x + y = 1230 -------------------- (1)
2.5x + 4.6y = 4797 ------------ (2)
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From equation 1 :
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x + y = 1230
x = 1230 - y // Take away y on both sides
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Sub x = 1230 - y into equation 2 :
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2.5 (1230 - y) + 4.6y = 4797 // Sub x = 1230
3075 - 2.5y + 4.6y = 4797 // Apply distributive property
3075 + 2.1y = 4797 // Combine like terms
2.1y = 1722 // Take away 3075 from both sides
y = 820 // Divide by 2.1 on both sides
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Sub y = 820 into equation 1 to find x :
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x + y = 1230
x + 820 = 1230 // Sub y = 820
x = 410 // Take away 820 from both sides
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Find the number of each type of downloads :
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Number of 2.5M downloads = x = 410
Number of 4.6M downloads = y = 820
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Answer: There were 410 downloads for the standard version.
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So the proportion would go as follows
5.5. 7.5
=
4.5. 60
To solve this you just cross muliply and divide.
I hope this helps you
Answer:
C
Step-by-step explanation:
I believe this is the best answer.