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denpristay [2]
3 years ago
8

If three times a number added to 8 is divided by the number plus 7, the result is four thirds. Find the number.​

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0

9514 1404 393

Answer:

  4/5

Step-by-step explanation:

The wording is ambiguous, as it often is when math expressions are described in English. We assume you intend ...

  \dfrac{3n+8}{n+7}=\dfrac{4}{3}\\\\3(3n+8)=4(n+7)\qquad\text{multiply by $3(n+7)$}\\\\9n+24=4n+28\qquad\text{eliminate parentheses}\\\\5n=4\qquad\text{subtract $4n+24$}\\\\\boxed{n=\dfrac{4}{5}}\qquad\text{divide by 5}

The number is 4/5.

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Jocelyn is preparing bags for a grab bag contest at a store. Each bag will contain one coupon and one small item. The table summ
Karolina [17]

Answer:

can you explain it more please

Step-by-step explanation:

8 0
2 years ago
If you roll a fair six-sided die and a fair four-sided die, what is the probability that neither die shows a 1?
elena-s [515]
Answer in fraction form: 5/8
Answer in decimal form: 0.625

==============================================

Explanation:

There are 5 sides that aren't labeled "1" out of 6 total. So the probability of not rolling a "1" on the six-sided die is 5/6

Similarly, there are 3 sides that aren't labeled "1" out of 4 sides on the four-sided die. The probability of not rolling a "1" for this die is 3/4

Multiply the fractions
(5/6)*(3/4) = (5*3)/(6*4) = 15/24 = 5/8

The answer in fraction form is 5/8 which converts to 0.625 (use long division or a calculator)

Note: the multiplication of probabilities works because the two events (of rolling each die) are independent
3 0
3 years ago
3(x+4)=2x+6 can you help me solve this
Vladimir [108]

Answer:

x=-6

Step-by-step explanation:

3(x+4)=2x+6

3x+12=2x+6

x+12=6

x=-6

5 0
3 years ago
How many loads of laundry can you wash if you work 3 shifts? express your answer numerically as an integer?
Likurg_2 [28]

Given that number of working shifts = 3

Let number of loads of laundry that you can wash in 1 shift = x

Then number of loads of laundry that you can wash in 3 shift = 3x


Numerical value of the number of loads of laundry that you can wash in 1 shift is not given so it's not possible to convert "3x" into integer.

But whatever be the value say 5 loads of laundry is washed in 1 shift then the answer is given by 3x= 3*5= 15

3 0
2 years ago
A standard number cube was rolled multiple times, and the results were recorded in the table above. What can be said about the e
JulsSmile [24]
They should ideally be the same. However, the difference is that the theoretical probability is what is expected to happen while the experimental probability is what happens in the actual scenario. The computation for both would be the same, and they should ideally be the same, unless other factors in an experiment would confound it.
7 0
3 years ago
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