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Zielflug [23.3K]
3 years ago
5

Five lemons costs 1.80.What is the cost per lemon.At this rate ,what is the cost of mine lemons

Mathematics
2 answers:
guapka [62]3 years ago
7 0

Answer:

.36 per lemon

9 lemons is 3.24

Step-by-step explanation:

To find the cost per lemon, we take the total cost and divide by the number of lemons

1.80/ 5 =.36

It cost .36 per lemon

We want to buy 9 lemons

Multiply 9 by the cost per lemon

9 * .36 =3.24

The cost for 9 lemons is 3.24

rodikova [14]3 years ago
3 0

If you mean 9 lemons

1 lemon = .36¢

9 lemons = $3.24

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3 years ago
Find the value of the linear correlation coefficient r. Round to 3 decimal places. (47, 8), (46, 10), (27, 10)
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Answer:

- 0.5379

Step-by-step explanation:

Given the data below :

(47, 8), (46, 10), (27, 10)

X:

47

46

27

Y:

8

10

10

Using the functionality of the correl() function in excel, which takes in the x and y values of a data. The value of correlation Coefficient (r) obtained is - 0.5379 which indicates that a fairly strong negative correlation exists between the x and y variables. As the the strength of correlation depends on how close the Coefficient is to 1 (strong) or 0 ( weak). Negative value indicates that an increase in the value of one variable leads to a decrease on the value of the other.

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3 years ago
Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?
maxonik [38]

ANSWER

2 \frac{1}{4}

EXPLANATION

We want to find the constant that must be added to

{x}^{2}  - 3x

to form a perfect square.

Comparing the given expression to

a{x}^{2}  + bx + c

we have

a=1 , b=-3 , and c=0.

We need to add

{( \frac{b}{2a} })^{2}

We substitute the values to get,

{( \frac{ - 3}{2(1)} })^{2}  =  \frac{9}{4}

We change this to mix numbers to get,

2 \frac{1}{4}

The last choice is correct.

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Step-by-step explanation:

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