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iren [92.7K]
3 years ago
9

Andre is planting saplings (baby trees). It takes him 30 minutes to plant 3 saplings. If each sapling takes the same amount of t

ime to plant, how long will it take Andre to plant 14 saplings? If you get stuck, consider using the table.
Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

140 minutes

Step-by-step explanation:

If it takes him 30 mins to plant three, then 30 divided into three equal groups is 10. Then we multiply 14 and 10 together since it takes Andre ten minutes to plant each sapling. This means  that the 14 saplings takes ten minutes EACH to plant.

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You have $65 to spend on party favors. On the internet, you find visors that cost that cost $6 each. The shipping and handling c
olchik [2.2K]

Answer:

10 visors

Step-by-step explanation:

Make an equation

Each visor, v costs $6, and there is a $5 fee regardless of the amount of visors purchased. This must be equal to $65

6v+5=65

Now, solve for v

Subtract 5 from both sides

6v=60

Divide both sides by 6

v=10

You can buy 10 visors

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3 years ago
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What is 7%tax of something that costs 2.99
KonstantinChe [14]
<span> For this case we can make the following rule of three:
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</span> x = (7/100) * (2.99)&#10;
<span> Rewriting the expression we have:
</span> x = (0.07) * (2.99)&#10;&#10;x = 0.2093 $<span>
 Answer:
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3 0
3 years ago
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What is the volume rounded to the nearest tenth?
Artemon [7]
Do you have a picture?
4 0
2 years ago
To amend U.S. Constitution, 3/4 of the 50 states must approve the amendment. If 35 states approve an amendment, will the Constit
Elodia [21]
To answer the question we need to know if 35 out of 50 states is equal or greater than 3/4 if that is the case, the Constitution will be ammended, and that is represented like this:
35/50 >= 3/4
that inequality is saying that 35 states out of 50 is equal or greater than 3/4, lets simplify and modify the fractions to compare easily:
<span>35/50 >= 3/4
</span>7/10 <span>>= 3/4
</span>now we need to find the least common multiplier of 10 and 4 to take the fractions to a common denominator and compare easy. Lets multiply numerator and denominator for a correct number to get the fractions to denominator common 20, the lcm:
7/10 <span>>= 3/4
</span>(2/2)(7/10) >= (5/5)(3/4)
2*7/2*10 >= 5*3/5*4
14/20 >= 15/20
we can see that the inequality does not hold, so,
<span>35/50 >= 3/4
</span>does not hold either, therefore the Constitution cannot be ammended
5 0
2 years ago
Read 2 more answers
A new car is purchased for 17000 dollars. The value of the car depreciates at 12.25% per year. What will the value of the car be
Scilla [17]

Answer:

P(t=14) = 17000 (1-0.1225)^{14}= 2728.404

Step-by-step explanation:

for this case we have the following model for the cost of the car:

P(t) = P_o (1-r)^t

Where P_o is the initial amount on this case 17000, t the amount of years after the initial year and r the depreciation rate on this case:

r= \frac{12.25}{100}=0.1225

And for t =14 we can replace into the equation and we got:

P(t=14) = 17000 (1-0.1225)^{14}= 2728.404

5 0
3 years ago
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