3 years ago

How much alfalfa does Helmut need to add to 30L of ostrich pellets to make a feed mix that is 40% alfalfa by volume?

Mathematics

1 answer:

Nutka1998 [239]3 years ago

8 0

Answer:

a = 20 . . . . liters

Step-by-step explanation:

To solve this, multiply the equation by 30+a:

a = 0.4(30 +a)

a = 12 + 0.4a . . . . . eliminate parentheses

0.6a = 12 . . . . . . . . subtract 0.4a

a = 12/0.6 = 20 . . . divide by the coefficient of a

20 L of alfalfa must be added

_____

Check

20/(30+20) = 20/50 = 40/100 = 0.4 . . . . . . answer checks OK

You might be interested in

What is 23.791 rounded to the nearest tenth?

sergejj [24]

The nearest tenth would be the first decimal place, so the answer would be 23.8

6 0

2 years ago

Lai ales What is the quotient? + 2y2 - 6y-20 4y+12 y2 +5y+ 3y2 + 18y+27

vesna_86 [32]

Answer:

here are two possible solutions

Step-by-step explanation:

6 0

3 years ago

Someone helppppp mee please !

Alchen [17]

Area = (1/2)(533 ft)(525 ft) sin(53) = 111739 square feet

4 0

3 years ago

after sharing a pizza you and two friends divide the cost by three. You each owe $2.66. Explain how to round this to the nearest

Stolb23 [73]

Answer:

Hi so you have the answer

Say you have 1.23 if the last digit is under 5 it would be 1.20

Now say you have 3.47 if the last digit is above 5 it would be 3.50

If it is something like 4.45 the 5 is the last digit so it would be 4.50

Step-by-step explanation:

um hope this helped :)

7 0

2 years ago

18 3/8f = -29 4/7 please help

KatRina [158]

Answer:

f=-552 /343 or 5=1 and 209/343

Step-by-step explanation:

4 0

3 years ago