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Viktor [21]
2 years ago
9

Help me plz. I dont understand.

Mathematics
1 answer:
Ahat [919]2 years ago
3 0
For this, you would use simultaneous equations.

w=walnuts
a=almonds

3w+6a=51
5w+4a=55

Find a way to make one of the unknowns equal. since we are trying to work out the price of a pound of walnuts, I am going to make a equal on each side to leave us with w. This leaves us with:

15w+12a=165
6w+12a=102

Then take them away to leave w:

9w=163

Then solve:

w=163/9
= 18.11111111...

Then round it to 2 decimal places as the measurement is currency.

So 1 pound of walnuts equals $18.11
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Katena32 [7]
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3 years ago
Find the average rate of change of the function f(x)=(3/-3x-5), on the interval x ∈ [0,3]
Svet_ta [14]

Answer:

The average rate of change on the given interval is 9/70

Step-by-step explanation:

Here, we are to find the average rate of change of the function on the given interval

We proceed as follows;

on an interval [a,b] , we can find the average rate of change using the formula;

f(b) - f(a)/b-a

From the question;

a = 0

b = 3

f(0) = -3/5

f(3) = -3/14

Substituting the values, we have;

-3/14-(-3/5)/3-0

= 3/5-3/14/3

= (42-15)/70/3

= 27/70/3

= 27/70 * 1/3 = 9/70

4 0
2 years ago
Help me please <br><br> will get rewared brainly if correct answer
larisa [96]

Well, split it into 3 shapes

21 x 10 = 210

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2 x 6 = 12

210 + 18 + 12 = 240 square cm

imahe for more context

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5 0
3 years ago
Can someone please help me with this?
elena-14-01-66 [18.8K]

Answer:

y=2/5x+2

slope: 2/5

y=-1/4x+4

y-intercept: 4

Step-by-step explanation

The equation for slope-intercept form is y=mx+b.

m=the slope

b= the y-intercept

5 0
3 years ago
Five chips numbered 1 through 5 are placed in a bag. A chip is drawn and replaced. Then a second chip is drawn. Find the probabi
Vesna [10]

12345

The odds of drawing an even chip are \frac{2}{5}.

The odds of drawing an odd chip are \frac{3}{5}.

You multiply the two \frac{2}{5} x  \frac{3}{5} =  \frac{6}{25}.

Knowing you cannot simplify 6/25 any further, you now have your answer!


Hope this helps! <3

6 0
3 years ago
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