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scoundrel [369]
3 years ago
8

morita work in a florist shop and makes flower arrangements She put 10 flower in each base and 2/10 of flower are daisies. If mo

rita make 4 arangements how many daisies does she need Shiw how you can check your answer
Mathematics
1 answer:
Roman55 [17]3 years ago
5 0
She needs 8 daisies.

1 arrangement = 10 flowers = 2/10 are daisies.
4 * 10 = 40 flowers
2/10 * 40 = 80 / 10 = 8 daisies.

4 arrangements = 40 flowers = 8/40 are daisies

Proportionality: where a/b = c/d

a = 2 daisies
b =10 flowers
c = 8 daisies
d = 40 flowers

We will know if the proportions are correct because the cross products will be equal.

ad = bc
2*40 = 10*8
80 = 80
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12x-5y=-20<br> y=x+4<br> Please help me asap it's due Wednesday<br> :(
Ahat [919]

Answer:

Point Form:

(0,4)

Equation Form:

x=0,y=4

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

5 0
3 years ago
I need your help pls. And if your not oo busy I have another one I need help with thx &lt;3
Helen [10]
Hi I’m not rlly good at math but there are apps that scan the question and it gives you the answer right away!
4 0
3 years ago
A cardboard box without a lid is to have a volume of 19,652 cm3. Find the dimensions that minimize the amount of cardboard used.
Effectus [21]

Answer:

The dimension of the cardboard is 34 cm by 34 cm by 17 cm.

Step-by-step explanation:

Let the dimension of the cardboard box be x cm by y cm by z cm.

The surface area of the cardboard box without lid is

f(x,y,z)= xy+2xz+2yz.....(1)

Given that the volume of the cardboard is 19,652 cm³.

Therefore xyz =19,652

\Rightarrow z=\frac{19652}{xy}......(2)

putting the value of z in the equation (1)

f(x,y)=xy+2x(\frac{19652}{xy})+2y(\frac{19652}{xy})

\Rightarrow f(x,y)=xy+\frac{39304}{y})+\frac{39304}{x}

The partial derivatives are

f_x=y-\frac{39304}{x^2}

f_y=x-\frac{39304}{y^2}

To find the dimension of the box set the partial derivatives f_x=0 and f_y=0.Therefore y-\frac{39304}{x^2}=0

\Rightarrow y=\frac{39304}{x^2}.......(3)

and   x-\frac{39304}{y^2}=0

\Rightarrow x=\frac{39304}{y^2}.......(4)

Now putting the x in equation (3)

y =\frac {39304}{(\frac{39304}{y^2})^2}

\Rightarrow y=\frac{y^4}{39304}

\Rightarrow y^3= 39304

⇒y=34 cm

Then \Rightarrow x=\frac{39304}{34^2} =34 cm.

Putting the value of x and y in the equation (2)

z=\frac{19652}{34 \times 24}

  =17 cm.

The dimension of the cardboard is 34 cm by 34 cm by 17 cm.

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3 years ago
L=4m\n+p solve for p
Anastasy [175]
I think the correct answer would be : p = -n+4m/L
I hope this helps !
7 0
4 years ago
Help I’m being timed !
Vinil7 [7]
What's the question??
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