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andreyandreev [35.5K]
3 years ago
8

The table shows the current grades in one of the math classes and one of the science classes at a local high school. Find P(grad

e of B | science class).
Mathematics
2 answers:
Alenkinab [10]3 years ago
8 0

Hey, did you ever figure it out?

max2010maxim [7]3 years ago
4 0

Answer:

.667

Step-by-step explanation: 8/12 i may be wrong but 0.154 is def wrong

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Enoch is two times as old as MARTIN.three years ago,the difference between their ages was fifteen years.find their present ages
olga2289 [7]

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Answer:

  • Enoch is 30
  • Martin is 15

Step-by-step explanation:

The difference in ages remains the same over time. Enoch, at twice Martin's age, is still 15 years older. That means Martin is 15 and Enoch is 30.

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Classify each triangle by its angles and by its sides.​
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Square is 90 degree angle

Step-by-step explanation:

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3 years ago
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How many times greater is the area of circle C than the area of circle A.
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I need a picture

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2 years ago
Rachel has 60 scones. She sells them to Robbie, Cameron, Louis, Tom and
Nutka1998 [239]
We can start by writing all that we know about the problem. Let us write down how many scones each boy has:
R_{o} : x
C_{a} : x+k
L_{o} : x+2k
T_{o} : x+3k
C_{h} : x+4k
Note that k is the increase, we know it's a constant. This is not a system of equations, please keep that in mind. We will use rest of the information given to build the system. We have two variables x (the number of cookies the first boy bought) and k( the increase), that means we need to have two equations to solve this problem. 
We know that total amount of scones is 60, so we can use that information to build our first equation. We sum all of the scones and we get 60. 
R_{o}+C_{a}+L_{o}+T_{o}+C_{h}=60
5x+10k=60
We know that Robbie and Cameron combined have 3/7 of <span>Louis, Tom and Charlie combined. We can use this information to build our second equation.
</span>R_o+C_a= \frac{3}{7} (L_o+T_o+C_h)
2x+k= \frac{3}{7} (x+2k+x+3k+x+4k)
2x+k= \frac{3}{7} (3x+9k)
14x+7k=9x+27k
5x=20k
x=4k
Now this piece of information alows us to solve the first equation that we made and this will solve our problem. We simply plug in x=4k into 5x+10k=60.
5(4k)+10k=60
30k=60
k=2
Now we can plug this information into the same equation 5x+10k=60 and get x.
5x+10(2)=60
5x=40
x=8
And that's it. Now we can write out how many cookies each boy has bought.
R_{o} : x=8
C_{a} : x+k=10
L_{o} : x+2k=12
T_{o} : x+3k=14
C_{h} : x+4k=16
If you add them all up you get 60.
3 0
3 years ago
Andre deposited $24.50 into his bank account each week for 5 weeks. What was the total amount Andre deposited? *
Ne4ueva [31]

Answer:

122.5

Step-by-step explanation:

24.50=1 week

24.0×5weeks

122.5=5weeks

6 0
2 years ago
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