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3 years ago

Solve the equation2x + 4x -7=5×=

Mathematics

1 answer:

Sauron [17]3 years ago

7 0

Answer:

soln,

6x=12

so,x=2.........

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Awnser question and show your work if you can (i will give brainliest

prohojiy [21]

Answer:

answer is -1.75

Step-by-step explanation:

$y = 12 \\ y = - 4x + 5 \\ \\ \: \: \: \: 12 = - 4x + 5 \\ - 5 \: \: \: \: \: \: \: \: \: \: \: - 5 \\ \\ 7 = - 4x \\ \div - 4 \: \: \: \: on \: both \: sides \\ \\ - 1.75 = x$

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3 years ago

How many distinct permutations can be formed using the letters of the word prepared

Troyanec [42]

Answer:

5,040

Step-by-step explanation:

Hmmm...this one is a bit tricky. First, prepared contains 8 letters. To find the number of ways this can be rearranged use the fundamental counting principle.

First letter - 8 choices

Second letter - 7 choices

Third letter - 6 choices

So the number of outcomes would be $8! = (8)(7)(6)(5)(4)(3)(2)(1)=40,320$

But wait, there's more. Prepared has some duplicate letters, the P, R, and E. That means if the letters were written ppeerrad it would be indistinguishable if it was the first or second P written first. So that means the letter P generates 2 outcomes that appear the same

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Same for the letter R

$\frac{20,160}{2}=10,080$

And same for the letter E

$\frac{10,080}{2}=5,040$

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3 years ago

What is unit rates and how do you solve them

ratelena [41]

Answer:

Unit rates are ratios that are used to compare different quantities

Step-by-step explanation:

It really depends on what kind of unit rate you're answering. So let's say that you go to the grocery store, and potatoes are $5.50 for 5. You would divide 5.50 by 5 to get the answer $1.10. Hope this helps!

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4 years ago