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chubhunter [2.5K]

3 years ago

9

what is the answer can someone please hep with this it is what if you have two people call for 1600 kg but you want enough for 1

0 how much baking soda will you need in grams

1 answer:

Stels [109]3 years ago

6 0

Answer:

Hi! I believe this is your answer:

8 grams

Hope this helps, and sorry if it's wrong!

Step-by-step explanation:

You might be interested in

What would you have to pay for a jacket that is listed at $99.95 if you live in Nunavut, where the only tax is 5% GST?

iragen [17]

Hey!

99.95 * 5% = 4.9975

99.95 + 4.9975 = 104.9475

The jacket would cost $104.94

3 0

3 years ago

Pam has 90 m of fencing to enclose an area in a petting zoo with two dividers to separate three types of young animals. The thre

andrew-mc [135]

Answer:

The area function is

$A=\frac{135}{2}x-\frac{9}{2}x^2$ .

The domain and range of A is $(0,15m)$ and $(0, 253.125 m^2]$ .

Step-by-step explanation:

The given length of fencing is $90 m$ .

Let the length and width of each pen be $x$ and $y$ respectively as shown in the figure.

As there are 3 pens, so, the total area,

$A= 3 xy \;\cdots (i)$

From the figure the total length of fencing is $6x+4y$ .

Here, for a significant area for the animals, $x>0$ as well as $y>0$ as $x$ and $y$ are the sides of ben.

From the given value:

$6x+4y=90\;\cdots (ii)$

$\Rightarrow y=\frac {45}{2}-\frac{3x}{2}$

Now, from equation (i)

$A=3x\left(\frac {45}{2}-\frac{3x}{2}\right)$

$\Rightarrow A=\frac{135}{2}x-\frac{9}{2}x^2\;\cdots (iii)$

This is the required area function in the terms of variable $x$ .

For the domain of area function, from equation (ii)

$x=15-\frac{2y}{3}$

$\Rightarrow x$ [as y>0]

So, the domain of area function is $(0,15m)$ .

For the range of area function:

As $x \rightarrow 0$ or $y\rightarrow 0$ , then $A\rightarrow 0$ [from equation (i)]

$\Rightarrow A>0$

Now, differentiate the area function with respect to $x$ .

$\frac {dA}{dx}=\frac{135}{2}-9x$

Equate $\frac {dA}{dx}$ to zero to get the extremum point.

$\frac {dA}{dx}=0$

$\Rightarrow \frac{135}{2}-9x=0$

$\Rightarrow x=\frac{15}{2}$

Check this point by double differentiation

$\frac {d^2A}{dx^2}=-9$

As, $\frac {d^2A}{dx^2}$ , so, point $x=\frac{15}{2}$ is corresponding to maxima.

Put this value back to equation (iii) to get the maximum value of area function. We have

$A=\frac{135}{2}\times \frac {15}{2}-\frac{9}{2}\times \left(\frac {15}{2}\right)^2$

$\Rightarrow A=253.125 m^2$

Hence, the range of area function is $(0, 253.125 m^2]$ .

4 0

4 years ago

Please help with hold page it is not alot I'm running out of the time

Travka [436]

I'll teach you how to do them, but not do them all for you.

2.
6:5 = ___:35
35 / 5 = 7
So you've got to multiply 6 by 7.
6:5 = 42:35

3.
2:3 = 20:___
20 / 2 = 10
So you've got to multiply 3 by 10
2:3=20:30

4.
36:24 = 6:___
36 / 6 = 6
So you've got to divide 24 by 6.
36:24 = 6:4

Keep trying and if you need more help feel free to ask.

7 0

4 years ago

3x + 5y= -5 in standard form

melomori [17]

Answer:

y= $\frac{3}{5} x-1$ -

Step-by-step explanation:

5 0

3 years ago

10÷(2x) when x= -5/4

Vladimir [108]

Answer:

-4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

10 ÷ (2x)

x = -5/4

<u>Step 2: Evaluate</u>

Substitute in <em>x</em>: 10 ÷ (2(-5/4))
Multiply: 10 ÷ -5/2
Divide: -4

6 0

3 years ago

Read 2 more answers