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puteri [66]
2 years ago
8

Please help need both answers

Mathematics
1 answer:
Eva8 [605]2 years ago
8 0

Answer:

5) 13%  7) 3/28

Step-by-step explanation:

<u>5)</u>

total number of marbles: 2 + 3 + 5 + 1 + 2 + 2 = 15 marbles.

probability its blue: \frac{2}{15} __in fraction

in percentage: \frac{2}{15} * 100 = 13%

<u>7)</u>

total number of marbles: 4 + 5 + 2 + 9 + 1 = 21

probability of selecting a red marble: 5/21

then 1 marbles is reduced as not replaced.

total marbles: 21 - 1 = 20

probability of getting orange marble: 9/20

total probability:  9/20 * 5/21 = 3/28

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the relationship between altitude and the boiling point is linear.AT an altitude of  8300ft 8300 ft , the liquid 
mojhsa [17]

Complete Question

The  relationship  between  altitude  and  the  boiling  point  is  linear. At  an  altitude  of   8300ft, the  liquid  boils  at   194.23 °  F

At  an  altitude  of   4200 ft ,  the  liquid  boils  at   202.02° F.

Write  an  equation  giving  the  boiling  point   b  of  the  liquid,  in  terms  of  altitude  a  in   feet . feet . What  is  the  boiling  point  of  the  liquid  at   2600ft

Answer:

The equation is  y  =  -0.001943x + 210.3569

At  2600ft  the temperature is  y  =  205.3051 \  °F

Step-by-step explanation:

From the question we are told that

    The temperature at 8300ft is 194.23 °  F

    The  temperature at 4200 ft is 202.02° F

Generally the slope for this relationship is mathematically represented as

      m  =  \frac{ 202.2 - 194.23}{ 4200 - 8300}

=>     m  = 0.001943  ^o  F / ft  

Generally the according to the point slope formula is

      y - y_1  =  m(x -x_1 )

=>   y - 194.23 =  -0.001943 (x - 8300 )

=>  y - 194.23 =  -0.001943x + 16.1269

=>  y  =  -0.001943x + 210.3569

Now we are given from the question that   x =  2600 ft

Then  

         y  =  -0.001943(2600) + 210.3569

=>      y  =  205.3051 \  °F

   

5 0
4 years ago
Help me please! i have to redo a quiz, but i need answers, no links
Galina-37 [17]

Answer:

2

Step-by-step explanation:

This is because it got 2 times bigger

7 0
3 years ago
The ratio of trumpet players to trombone players in the band is 5:3. What does this mean?
Anit [1.1K]

Answer:

for every 3 trombone players in the band there will be 5 trumpet players in the band

Step-by-step explanation:

example 6 trombone = 10 trumpet

5 0
3 years ago
18 less than 3 times d is -27
Reil [10]
3d-18=-27
3d=-27+18
3d= -9
D= -9/3
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D equals -3. Hope this helps!
6 0
4 years ago
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6^2 - 7 (10 - 5 ) = ?
drek231 [11]
Your answer is 1
Hope it helps
6 0
3 years ago
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