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motikmotik
3 years ago
10

Colleen recorded the type of trees in the woods near her house.She counted 20 trees and 50 maple trees.What is the experimental

probability that the next tree Colleen finds will be a spruce tree. Answer with a fracation
Mathematics
1 answer:
natka813 [3]3 years ago
5 0

Answer: The required probability is \dfrac{8}{125}

Step-by-step explanation:

Since we have given that

Number of spruce tree = 20

Number of maple tree = 50

Total trees = 70

We need to find the experimental probability that the next tree Colleen to get a spruce tree.

So, the probability would be :

(\dfrac{20}{50})^3=(\dfrac{2}{5})^3=\dfrac{8}{125}

Hence, the required probability is \dfrac{8}{125}

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An ice-cream store sold 70 sundaes. The ratio of
elixir [45]

Answer:

30 strawberry sundaes.

Step-by-step explanation:

We know there is a total of 70 sundaes.

3 sundaes will be strawberry.

4 sundaes will be choclate.

When you add 3 and 4 together, you get 7. This is your total ratio.

So 3/7 of the sundaes are strawberry.

And 4/7 of sundaes are choclate.

We know there is a total of 70 sundaes.

The total ratio we figured out is 7.

If the total sundaes is 70, and the total ration is 7. Then the total sundaes is 10 times bigger than the ratio.

This means we need to multiply the 3 strawberry sundaes and 4 choclate sundaes by 10.

3*10=30

4*10=40

So there are 30 strawberry sundaes and 40 choclate sundaes.

We need to find the strawberry sundae amount, so the answer is 30.

Hope this helps!

3 0
3 years ago
Please help, show me how to check the answer to this
sveta [45]
3x-7=5x=19
3x-7-5x=5x+19-5x
-2x-7=19
-2x-7+7=19+7
-2x=26
-2x/-2=26/-2
x=-13

:) Did you get that?
5 0
3 years ago
The manager of a snack bar buys bottled water in packs of 35 and candy bars in packs of 20. Then, she sells the items individual
Lerok [7]

\Huge\bf{\underline{\red \dag { Aиѕωєя }}} \red \dag

4 Packs of water and 7 Packs of candy bars.

So, we wanna know the smallest number that both 35 and 20 will go into.

Find the Least Common Multiple (LCM), but to find the LCM we need to find the prime factorization of each of the following number :-

\sf {35 = 5(7)}

\sf \red {20 = 5(4)}

\sf {4 = 2(2)}

\sf \red {20 = 5(2)(2)

~Now multiply all the numbers by 5 :-

\sf  \pink{5(7)(2)(2) = 35(2)(2) = 70(2) = 140}

This means she needs 140 bottles of water and 140 candybars.

Water is sold in packs of 35, this means that she needs :

\sf \orange{ \frac{140}{35}  = 4\: packs \: of \: water}

Candy bars are sold in packs of 20, this means she needs :

\sf \green{ \frac{140}{20}  = 7 \: packs \: of \: candy \: bars}

<u>___________________</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

6 0
3 years ago
Three coins are tossed. find the probability that two lands on heads
NeX [460]
Only 1 coin lands on tales of 2 coins landed on heads
8 0
3 years ago
Please help.<br> Algebra.
Vitek1552 [10]

Answer:

A) SUBTRACT 3x by both sides of the bottom equation.

8 0
3 years ago
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