1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ber [7]
2 years ago
6

Brainliest reward …… please quick

Mathematics
2 answers:
Fittoniya [83]2 years ago
7 0

Answer:

3

Step-by-step explanation:

First, calculate the total area of the grass by calculating the area of the rectangle and the triangle, and then subtracting the triangle area from the rectangular area:

area of rectangle = width x length

⇒ area of rectangle = 7 x 12 = 84 m²

area of triangle = 1/2 x base x height

⇒ area of triangle = 1/2 x 6 x 3 = 9 m²

total area of the grass = area of the rectangle - area of triangle

⇒ total area of the grass = 84 - 9 = 75 m²

Given one box of fertilizer = 32 m² grass

⇒ boxes of fertilizer needed = area of grass ÷ 32

                                                = 75 ÷ 32

                                                = 2.34375

Therefore, Mrs Kunal will need 3 boxes of fertilizer.  

We need to round up to 3 rather than round down to 2, else she won't have enough to cover the entirey of the grassed area.

strojnjashka [21]2 years ago
6 0

Answer:

3 boxes of fertilisers.

Solving steps:

<u>Part A</u>:

Area of the garden, rectangle:

Length * Width

12 * 7

84 m²

Area of patio:

\sf{\frac{1}{2}  * base *height

\sf{\frac{1}{2}  * 6*3

\sf{9 m²

Area of grass:

Area of the garden - Area of patio

84 m² - 9 m²

75 m²

<u>Part B</u>:

32 m² ↔  1 box

1 m²    ↔ \sf{ \frac{1}{32} box

75 m²  ↔ \sf{ \frac{1}{32} *75 boxes

75 m²  ↔ 2.34375 boxes

  • As she cannot buy exact 2.34375 boxes.

She should buy 3 boxes of fertilisers.

You might be interested in
Question 20
mamaluj [8]
The main advantage of the metric system and it's use is that it Does not require knowledge of math to use it. A person having non or low level of knowledge can use it.
5 0
3 years ago
What is the vertex of f (x) = 5x^2+20x-16
sergeinik [125]

Answer:

vertex = (- 2, - 36)

Step-by-step explanation:

Given a parabola in standard form : y = ax² + bx + c : a ≠ 0

Then the x- coordinate of the vertex is

x_{vertex} = - \frac{b}{2a}

f(x) = 5x² + 20x - 16 is in standard form

with a = 5, b = 20 and c = - 16

x_{vertex} = - \frac{20}{10} = - 2

Substitute x = - 2 into f(x) for corresponding y- coordinate

f(- 2) = 5(- 2)² +20(- 2) - 16 = 20 - 40 - 16 = - 36

vertex = (- 2, - 36)



3 0
2 years ago
Read 2 more answers
QUICK I NEED HELP!!
natta225 [31]
7 (6) + 14!!! And this needs to be 20 characters long so I’m adding this
4 0
3 years ago
Brent went for a bicycle ride. The clocks show his start time and his
Dominik [7]

Answer:

He rode his bicycle for <u>4</u><u>0</u><u>m</u><u>i</u><u>n</u><u>u</u><u>t</u><u>e</u><u>s</u>

Hope it helps:)

3 0
2 years ago
Read 2 more answers
State if the given functions are inverses<br>NO LINKS!!!! Part 1​
Dafna11 [192]

Step-by-step explanation:

3:

h(x)=(-3x-15)/5

let y=(-3x-15)/5

interchanging role of x &y

x=(-3y-15)/5

5x+15=-3y

y=-(5x+15)/3

h-1(x)=-(5x+15)/3

not

equal to f(x)=(-3x-6)/4

<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>func</u>tion <u>are</u><u> </u><u>not</u><u> </u><u>function</u><u> </u><u>of</u><u> </u><u>each </u><u>other</u><u> </u><u>.</u>

4:

g(x)=2/3x-2/3

let

y=2/3(x-1)

interchanging role of x &y

x=2/3(y-1)

3/2x+1=y

g-1(x)=3/2x+1

not equal to f(x)=½x+1

<u>Given function are not function of each other .</u>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the sum and express it in simplest form.<br><br> (-4a + c + 3) + (-3a + 5c)
    8·1 answer
  • Whats the axis of symmetry for f(x)=2x2+3x+6
    13·1 answer
  • Multiply the hours of labor by $50 , then add $35 If C equals cost in dollars and h equals hours of labor , which equation expre
    10·1 answer
  • 3a+4+b+2a+5+b Simplified the expression
    6·2 answers
  • Graph each equation x/3 -y/6 = 1
    7·1 answer
  • It takes 2 hours for a boat to travel 28 miles downstream.The same boat can travel 18 miles upstream in 3 hours .Find the rate o
    6·1 answer
  • If cash is $2,345 in 20x2 and $3,671 in 20x1, what is the percentage of increase or (decrease) from 20x1 to 20x2?
    15·2 answers
  • Can anyone help me!! You don’t have to answer all just one would be fine!
    9·1 answer
  • PLEASE HELP!! <br> Find the area of the triangle below
    13·1 answer
  • What is -0.17r+0.91+r
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!