Answer:
Lara will do a profit of 34 pence by 100 grams of birdseed.
Step-by-step explanation:
The given ratio means that there are 2 grams of peanuts and 3 grams of sunflower per each 5 grams of birdseed. Now, we obtain the amount required of peanuts and sunflower for 100 grams of birdseed by simple rule of three:
Peanuts
Sunflower
If we know that 10 grams of sunflower cost 9 pence and 10 grams of sunflower cost 3 pence, then the total cost of production of 100 grams portion:
And the profit done by Lara is:
Lara will do a profit of 34 pence by 100 grams of birdseed.
To get the answer, do 30,00 / 8
after dividing that you will get the answer 3,750
Answer:
I think that it is B because its the only answer that makes sense
Step-by-step explanation:
<span>lets assume number of iphones sold = a
number of ipads sold = b
i sold 4 iphones more than ipad that becomes
a = b+4
then the equation of total commission becomes
30a+20b = 520
substituting a =b+4 in the above equation
30(b+4)+20b = 520
30b+120+20b = 520
50b =520-120
50b = 400
b = 400/50
b=8
number of iphones i sold = a = b+4 = 8+4 = 12
number of ipads i sold = 8
so i sold 12 iphones and 8 ipads to earn the commission of $520</span>
f(x) = 4x - 18
f(-3) - <em>put x = -3 to the equation of the function</em>
f(-3) = 4(-3) - 18 = -12 - 18 = -30
<h3>Answer: (-3, -30).</h3>
f(x) = -46
We have the equation:
4x - 18 = -46 <em>add 18 to both sides</em>
4x = -28 <em>divide both sides by 4</em>
x = -7
<h3>Answer: (-7, -46)</h3>