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Maslowich
3 years ago
14

St. Augustine grass can grow at the rate of 4 over 7 centimeter per week.

Mathematics
1 answer:
kotegsom [21]3 years ago
3 0

Given, the rate of growth of St. Augustine grass is \frac{4}{7} cm per week.

We have to find the number of weeks that the grass grow to \frac{12}{7} cm.

Let's take the number of weeks be x.

In 1 week the grass grow = \frac{4}{7} cm

So in x weeks the grass grow = (\frac{4}{7}) (x) =\frac{4x}{7} cm

So we can write,

\frac{4x}{7} =\frac{12}{7}

To solve it for x, first we will move 7 to the right side by multiplying it to both sides. We will get,

(\frac{4x}{7}) (7) =(\frac{12}{7})(7)

4x =(\frac{12}{7})(7)

4x = 12

Now to get we will move 4 to the right side by dividing it to both sides. We will get,

\frac{4x}{4} =\frac{12}{4}

x = 3

So we have got the required answer.

After 3 weeks the grass grow \frac{12}{7} cm.

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pishuonlain [190]
Well, if it descends 9 meters every minute, you would multiply 9 by the number of minutes in question. Since you want to know its location after 5 minutes, you would multiply 9 by 5.

9 x 5 = 45 so 45 meters after 5 minutes

Hope this helps :)
3 0
3 years ago
Read 2 more answers
Use the quadratic formula to find the exact solutions of x2 - 5x - 2 = 0.
Fudgin [204]

Step-by-step explanation:

{x}^{2}  - 5x - 2 = 0 \\ a = 1 \: and \: b =  - 5 \: and \: c =  - 2 \\ x =  \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a}  \\ x =  \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2}  - (4 \times 1 \times  - 2)} }{(2 \times 1)}  \\ x =  \frac{5± \sqrt{33} }{2}  \\ either : x =  \frac{5 +  \sqrt{33} }{2} \:  or \:  \frac{5 -  \sqrt{33} }{2}  \\ x = 5.4 \: or \:  - 0.4

6 0
3 years ago
What is the answer? I find this very confusing for me.
vichka [17]

Answer:

19

Step-by-step explanation:

If you want to find the answer of the equation, sub the given information into it:

z + xz + y

we know that:

x = 5

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We got:

= 3 + 5*3 + 1

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= 19

Hope this helped :3

5 0
3 years ago
What is the answer to -3(9-x)+6x
marin [14]

Answer: 9−27

Step-by-step explanation:

4 0
3 years ago
5
atroni [7]

Answer:

I believe the question says "5j + 16 - 12(-9j - 4) - 12j"  I hope I'm correct because I have almost no idea what you typed.

If you did type "5j + 16 - 12(-9j - 4) - 12j" then your answer would be 133j + 52 I believe. You never put how you would like your problem to be solved, so I simplified.

Step-by-step explanation:

Hope this helps.

5 0
2 years ago
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