a bottle contains 20 fluid ounces of lotion and sells for $5.80. The 20-fluid-ounce bottle contains 125% of the lotion in the next smallest size, which sells for $5.12. Which is the better buy? Explain

Answers

Answer 1

Answer: here is a way to solve wihtout knowning the volume of the smaller bottle (which is 16oz, btw)

if 5.8 is 125% of the volume of the other one
find what it would cost for 100%
5.8=125% of volume
1.16=25% of volume
4.64

that contains the sameamount as theother one

4.64<5.12

the 20 oz bottle is the better buy

don't believe me?

20=125% of other
4=25% of other
16=100% of other

let's find the cost per ounce of lotion
5.8/20?5.12/16 where ? represents a relation symbol (=,> <)
0.29?0.32
0.29<0.32

20 oz bottle is the better buy

Answer 2

Answer: the 20 fluid ounce because you get more for .78 cents more

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Pretend that you can have 100 of any one thing. What would you choose?why?

Answers

I would like 100 like 100 things of food because i can feed the food to the homeless

$100 million to help my family and to save up for school.

Write the equation of a vertical ellipse with a major axis of 20, a minor axis of 12, and a center of (6, 3)

Answers

Answer:

The equation of a vertical ellipse is $((x-6)^2)/(100) + ((y-3)^2)/(36) = 1\n$

Step-by-step explanation:

Here, given:

Length of major axis: 20

⇒ 2 a = 20 , or , a = 10

Length of minor axis: 12

⇒ 2 b = 12 , or , b = 6

Also, center (h,k) = (6,3)

Now, STANDARD EQUATION OF ELLIPSE :

$((x-h)^2)/(a^2) + ((y-k)^2)/(b^2) = 1\n$

Now, substituting the values, a, b , h and k in above expression, we get:

$((x-6)^2)/(10^2) + ((y-3)^2)/(6^2) = 1\n$

or, $((x-6)^2)/(100) + ((y-3)^2)/(36) = 1\n$

Hence, the equation of a vertical ellipse is $((x-6)^2)/(100) + ((y-3)^2)/(36) = 1\n$

2.45 as a mixed number

Answers

2.45 = 2 +0.45 = 2 + 45/100 = 2 + 9/20 = $2 (9)/(20)$

Maria bought seven boxes. A week later half of all her boxes were destroyed in a fire. There are only 22 boxes left. How many did she start out with

Answers

so you do 22+7÷2
22+7=29
29÷2=14.5
So she has 14.5 boxes left after the fire.
Hope I helped! :-)

The answer is 44 with my big brain in motion

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Answers

Fractions are direct proportions.
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Jason entered the elevator of the skyscraper on the ground floor and rode up to the 45th floor. Since Jason was texting, he didn’t notice where he was, so he then rode down 28 floors and finally up 15 floors where he exited the elevator. On what floor did Jason exit the elevator?

Floor

Answers

ok here's how i think you do it you take 45-28 which gets you 17, then you do 17+15 which gets you 32

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