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3 years ago

what is the least to greatest in 3/4,3/10,2/5, 7/10? please break it down for me so I can explain it to a 9 yr. old

Mathematics

1 answer:

VMariaS [17]3 years ago

6 0

Answer:

3/10, 2/5, 7/10, 3/4

Step-by-step explanation:

3/10 is 30%. 2/5 is 40%. 7/10 is 70%. 3/4 is 75%. Or you could multiply the denominators so that all denominators have the value of 20. Then it can be arranged. For 3/4, you can multiply everything by 5 to get 15/20. for 3/10, you can multiply everything by 2 to get 6/20. For 2/5, you can multiply everything by 4 to get 8/20. And for 7/10, you can multiply everything by 2 to get 14/20. Now you can arrange everything, starting with 3/10, then 2/5, then 7/10, and finally 3/4.

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Can someone please help find the answer and explain how you got it please.

tresset_1 [31]

Answer:

Step-by-step explanation:

Hello!

We put in 2 for x and 6 for y

$\frac{2(6)-2}{2}$

Now we can solve this

$\frac{12 - 2}{2}$

$\frac{10}{2} = 5$

The answer is 5

Hope this helps!

4 0

3 years ago

Read 2 more answers

Shawn earns $12.75 per hour. How many hours does she need to work to earn $102 or more. Write and solve an inequality.

astra-53 [7]

First we divide 102 by 12.75 to get the hours which is 8 hours. So it would take 8 hours

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2 years ago

Log_{7 }(5 - 3x) Find the derivative

V125BC [204]

Let y be the expression you want to differentiate:

$y=\log_7(5-3x) \implies 7^y=5-3x$

Now,

$7^y=e^{\ln(7^y)}=e^{y\ln(7)}$

Use the chain rule to differentiate both sides with respect to x :

$\ln(7)e^{y\ln(7)}\dfrac{\mathrm dy}{\mathrm dx}=-3$

Solve for dy/dx :

$\ln(7)7^y\dfrac{\mathrm dy}{\mathrm dx}=-3$

$\dfrac{\mathrm dy}{\mathrm dx}=-\dfrac3{\ln(7)7^y}$

$\dfrac{\mathrm dy}{\mathrm dx}=\boxed{-\dfrac3{\ln(7)(5-3x)}}$

6 0

3 years ago

Wilson paints 40% of a bookcase in 20 minutes how much more time will it take him to finish the bookcase?

Nadya [2.5K]

Answer:

30 minutes

Step-by-step explanation:

First you can break down the percent and the time into a fraction

You can divide it by 2

so 2%/1 (2% in 1 minute)

Then you find the amount of time it would take to paint the whole bookcase

2 * 100 = 50

So time to paint the whole bookcase would be 50

50 - 20 = 30

5 0

3 years ago

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How many permutations can be formed from all the letters in the word engineering?

laila [671]

Answer:

277,200

Step-by-step explanation:

To find the number of permutation we can form from the letters of the word "engineering", we first need to find the frequencies of the different letters present.

E = 3

G = 2

N= 3

I = 2

R = 1

Now that we have the frequencies, we count the number of letters in the word "engineering".

E N G I N E E R I N G

11 letters

Now we take the factorial of total number of letters and divide it by the number of repeats and their factorial

So we get:

$\dfrac{11!}{3!2!3!2!1!}$

We remove the 1! because it will just yield 1.

$\dfrac{11!}{3!2!3!2!}$

So the total number of permutations from the letters of the word "engineering" will be:

Total number of permutations = $\dfrac{39,916,800}{144}$

Total number of permutations = 277,200

3 0

3 years ago