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kvv77 [185]
3 years ago
14

At the science fair, Tanvi uses 8 fluid ounces of vinegar to make her volcano erupt. How many times can she make her volcano eru

pt with 1 quart of vinegar?
Mathematics
1 answer:
SpyIntel [72]3 years ago
7 0

Answer:

4 times

Step-by-step explanation:

1 quart is equivalent to 32 fluid ounces.

If each eruption consumes 8 fluid ounces of vinegar. Assuming that the amount of vinegar required per eruption is constant, the number of times Tanvi can make her volcano erupt is:

n=\frac{32}{8}\\n=4\ times

Tanvi can make her volcano erupt 4 times  with 1 quart of vinegar.

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notsponge [240]
427.0 mm is more precise.
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4 years ago
A certain forest covers an area of 2400 km^2. Suppose that each year this area decreases by 5.75%. What will the area be after 8
kolezko [41]
We have to use the function A(t)= a(1 +/- r)^t
So A is going to be the answer- the area after 8 years. t is going to be 8, because t is time. a is 2400 because that's the starting value. Finally, we're going to turn 5.75% into it's decimal form of .0575. That's going to be r, and because the area is decreasing, we will subtract r from 1.
Our new function is:
A=2400(1-.0575)^8
Simplify a little bit.
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5 0
3 years ago
Betsy can clean a b of the house in an hour. How long will it take her to clean the whole house?
kipiarov [429]

Answer:

\frac{b}{a} is the total time taken to clean the house.

Step-by-step explanation:

Given that:

Betsy cleans \frac{a}{b} of the house.

Time taken = 1 hour

To find:

Time taken to clean the whole house = ?

Solution:

We can use unitary method here to solve this problem.

We are given that \frac{a}{b} of the house is cleaned in 1 hour.

We have to find that a total of 1 house will be cleaned in how much time.

(1 house because Betsy's house can be considered as a single unit).

To find this we will divide 1 hour with \frac{a}{b}.

Now, Let us solve this mathematically:

\frac{a}{b} of the house is cleaned in = 1 hour

1 of the house will be cleaned in =  1 hour divided by \frac{a}{b}

\dfrac{1}{\dfrac{a}{b}}\ hours\\\Rightarrow \dfrac{1 \times b}{a}\ hours\\\Rightarrow \dfrac{b}{a}\ hours

So, the <em>answer </em>is:

\frac{b}{a} is the total time taken to clean the house.

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4 years ago
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A forklift raises a 1,020 N crate 3.50 m up to a shelf. How much work is done by the forklift on the crate
irina [24]
W = F×D
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4 0
4 years ago
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