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34kurt
3 years ago
11

Solve the following equation. 3x/7-2=15 (Must be a mixed number)

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

Mixed Number

39 \frac{2}{3}

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Find the x and y intercepts.
Roman55 [17]
-3/4x + 5/6 y = 15

Multiply through by 6

-9/2x + 5y = 90

Add 9/2x to both sides

5y = 90 + 9/2x

Divide both sides by 5

y = 18 + 9/10x

y = 9/10x + 18
Comparing with the general equation of a straight line y = mx + c

Gradient (m) = 9/10 or 0.9
and the y - intercept (c) = 18




3 0
2 years ago
Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or classes. If 14 adult smartphone us
emmasim [6.3K]

The probability that fewer than 4 of then use their smart phones in meetings  or classes is 0.00030243747.

Step-by-step explanation:

Fewer than 4 means ,less than 4 which is any number less than 4 and not including 4. This is 3, 2,1 and 0. So you find the probability that exactly 3 of then use their smart phone, exactly 2 of them use their smart phones, exactly 1 of them use his/her smart phone and none of them.

Given that 52% use smartphones in meetings and classes =0.52

Thus the remaining 48% do not use smartphones in meetings and classes=0.48

For C(14,3) you will have "14 chose 3", number of ways of choosing 3 out of 14'

=(0.52)³ *(0.48)⁹=0.00019018714

For C(14,2) you will have "14 chose 2", number of ways of choosing 2 out of 14

=(0.52)²*(0.48)¹²=0.00004044841

For C(14,1) you will have "14 chose 1", number of ways of choosing 1 out of 14

=(0.52)¹*(0.48)¹³=0.000037337

For  C(14,0) you will have "14 chose 0", number of ways of choosing 0 out of 14

=(0.52)⁰*(0.48)¹⁴=1*0.00003446492=0.00003446492

The probability that fewer than 4 of them use their smartphones in meetings or classes will be

0.00019018714 +0.00004044841+0.000037337+ 0.00003446492=0.00030243747

Learn More

  • Binomial random variable https://brainly.in/question/10088120

Keywords : Probability, random variable, binomial distribution

#LearnwithBrainly

4 0
3 years ago
Robert has 1/4 of a bag of chips. He wants to share the remaining chips with himself and 2 friends. What fraction of a bag of ch
Aleksandr [31]

Answer:

1/12

Step-by-step explanation:

1/4÷ 3= 1/4 x1/3=1/12

5 0
2 years ago
Fifteen times the square of a non-zero number is equal to 12 times the number. whats the number?
Fofino [41]
15x^2 = 12x
divide each side by x
15x = 12
now divide each side by 15
x = 12/15 or 4/5 which is also 0.8
4 0
3 years ago
Estimate by first rounding each number to the nearest 1/2 -4 1/6 * (-1 14/15) A.
Studentka2010 [4]
The correct answer is B -8 just do the work :)
4 0
3 years ago
Read 2 more answers
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