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4 years ago

A farmer needs to mix 12 ounces of fertilizer for every 10 pounds of soil. How many pounds of fertilizer fill the farmer

1 answer:

8 0

100lbs of soil= 120 oz of fertilizer
20lbs of soil= 24oz of fertilizer
120+24= 144oz of fertilizer
120lbs of soil needs 114oz of fertilizer

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A student solved for the radius of a circle with a circumference of 12π Step 1: C = 2 pi r. Step 2: 12 pi = 2 pi r. Step 3: Star

Greeley [361]

Answer:

The student made a mistake in step 4

The length of the radius should be 6 cm

Step-by-step explanation:

Let us write each step to find the radius of a circle from its circumference

Step 1:

∵ C = 2πr

∵ C = 12π

Step 2:

Equate 12π by 2πr

∴ 12π = 2πr

Step 3:

Divide both sides by 2π

∵ $\frac{12\pi }{2\pi }=\frac{2\pi r}{2\pi }$

Step 4:

∴ 6 = r

∴ The radius of the circle is 6 cm

The student mad a mistake he divided the left hand side by 2π and the right hand side by 2 only he left π with r

Step 4:

∴ 6 = πr

So he divided both sides again by π

Step 5:

∵ $\frac{6}{\pi }=\frac{\pi r}{\pi }$

Step 7:

∴ $\frac{6}{\pi }$ = r

The student made a mistake in step 4

The length of the radius should be 6 cm

3 0

3 years ago

Read 2 more answers

2^4n × 2^ 2n = 512<br> What is the value of n.

Marina86 [1]

Step-by-step explanation:

${2}^{4n} \times {2}^{2n} = 512$

${2}^{4n} \times {2}^{2n} = {2}^{9}$

${2}^{4n + 2n} = {2}^{9}$

$6n = 9$

$n = \frac{3}{2}$

8 0

2 years ago

Read 2 more answers

Maya runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes?

andreev551 [17]

Answer:

5.6 miles.

Step-by-step explanation:

7/80=x/64 is our equation

Cross multiply to solve for x

x=7*64/80

x=5.6mi

Hope this helps ^-^

7 0

3 years ago

Read 2 more answers

Geometry Homework Help please?

Sati [7]

3x - 3 = x + 5

2x -3 = 5

2x = 8

x = 4

you can plug 4 into each one to determine that they both equal 9 and that entire length is equal to 18

5 0

4 years ago

If one pie is shared equally by 6 people, then each person will get<br> what fraction of the pie?

amid [387]

Answer: Each person will take $\dfrac{1}{6}$ of the pie.

Step-by-step explanation:

Given : One pie is shared equally by 6 people.

The total number of persons = 6

Now, the fraction of the whole pie each person will take :-

$\dfrac{\text{Number of pie}}{\text{total persons}}\\\\=\dfrac{1}{6}$

Therefore, the fraction of the whole pie each person will take= $\dfrac{1}{6}$

3 0

3 years ago