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evablogger [386]
3 years ago
15

What is 1 out of 7 + 1/2 plz help

Mathematics
1 answer:
scoray [572]3 years ago
7 0
Answer: 9/14

Explanation. First, you have to find the least common denominator. The least common denominator is the lowest number you can use on the denominator to create a set of equivalent fractions

7 and 2 can both go into 14
Whatever number you use to multiply to equal 14, you do the same to the top.
It would look like this.

2/14 + 7/14
Then you add.

2/14 + 7/14= 9/14
You can’t simplify this fraction so this is your answer. Hope this helped!
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Can't understand this. Can anyone tell me the answer -
slavikrds [6]

Hi,

The first thing you have to remember, that the sum of  all probabilities are equal to 1.

As you have only  4 items  :   Pasta + Fish + Pizza +Salad

So pasta + fish + pizza +salad  =   1  

1 means every client who bought something had something to eat.  

So now it simple :

We know  the probability of every other items, so we will find the probabilty of  salad by substracting  off  1 every other probabilities.  

<u>Remind yourself  to always have data in same shape/ units etc.</u>

Here we have percentage, fraction, numbers.... can be confusing.  

So convert all in same shape.  I 'm going to convert all in numbers, as it seems to me the simpliest.

I will call probability of  salad  "X" as it usually like that we call something unknown in math.

So pasta =  15 % =  15/100  = 0.15

    fish =  0.2

    pizza =  3/10 = 0.3

   salad =  X

So  now  we have  :  

pasta + fish + pizza +salad  =   1  

replace by what I know :

0.15 +0.2+0.3 + X = 1

0.65 + X = 1  

0.65 +X -0.65 = 1 - 0.65

                         X =  0.35

Salad probability is  0.35  , which means  35 % .

8 0
1 year ago
Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = 6x3 ? 9x2 ? 108x + 2, [?3, 4]
SVEN [57.7K]
Assuming the question marks are minus signs
to find max, take derivitive and test 0's and endpoints

take derivitive
f'(x)=18x²-18x-108
it equal 0 at x=-2 and 3
if we make a sign chart to find the change of signs
the sign changes from (+) to (-) at x=-2 and from (-) to (+) at x=3
so a reletive max at x=-2 and a reletive min at x=3

test entpoints

f(-3)=83
f(-2)=134
f(3)=-241
f(4)=-190

the min is at x=3 and max is at x=-2
4 0
4 years ago
A tennis ball has a diameter of 2.7 inches. What is the approximate volume of the tennis ball
jonny [76]

Answer:

volume = 10.2 in³

Step-by-step explanation:

r = 2.7/2 = 1.35

volume = 4/3πr³ = 4/3(3.14)(1.35³) = 10.2 in³

4 0
2 years ago
The ratio of strawberries to bananas in a smoothie recipe are shown in the graph below.
dedylja [7]

Answer: The last table is the correct answer.

Step-by-step explanation: The ratio is 6 strawberries  to 1 banana.

3 0
3 years ago
Find the perimeter of a square with side a. Are the perimeter of the square and the length of its side directly proportional qua
inna [77]

The perimeter of a square with side a = 7.2 cm is 28.8 cm. Yes there exists a direct proportional relationship between Side length and Perimeter of square

<h3><u>Solution:</u></h3>

Given that side of square "a" = 7.2 cm

We have to find the perimeter of square

<em><u>The perimeter of square is given as:</u></em>

Perimeter of square = 4a

Where "a" represents the length of side of square

Substituting the given value a = 7.2 cm in above formula, we get perimeter of square

Perimeter of square = 4(7.2) = 28.8 cm

<em><u>Are the perimeter of the square and the length of its side directly proportional quantities?</u></em>

\begin{array}{l}{\text { perimeter of square }=4 a=4 \times \text { length of side }} \\\\ {\frac{\text { perimeter of square }}{\text { length of side }}=4}\end{array}

The Perimeter is equal to a constant times the Side length, or the Perimeter divided by the Side length is equal to four. So this is definitely a proportional relationship between Side length and Perimeter.

Two values are said to be in direct proportion when an increase in one results in an increase in the other.

So when length of sides increases, perimeter also increases

Hence perimeter and length of side of square are directly propotional quantities

4 0
3 years ago
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