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Alex
3 years ago
5

1) Solve for x in the following equation: 7x + 10 - 10x - 5 > 20 *

Mathematics
2 answers:
Trava [24]3 years ago
6 0

7x + 10 - 10x - 5 > 20

Answer:

<em>x<−5</em>

Olenka [21]3 years ago
4 0

Answer:x<1/7 (5 - sqrt(130))

Step-by-step explanation:

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Among all rectangles that have a perimeter of 188, find the dimensions of the one whose area is largest.
ANEK [815]
Always add them all around and then divide the two and you should get the correct answer
4 0
2 years ago
Solve by addition method <br>3x+y=8 <br>2x-y=7
Vinil7 [7]

Answer:

(3,-1)

Step-by-step explanation:

So we have the system of equations:

3x+y=8\\2x-y=7

As directed, add straight down. The y-variable will cancel:

5x=15

Now, divide both sides by 5. The left cancels:

x=3

So x is 3.

Now, substitute 3 for x in either of the equations:

3x+y=8

Substitute 3 for x:

3(3)+y=8

Multiply:

9+y=8

Subtract 9 from both sides:

y=-1

So, our answer is: x=3, y=-1 or (3,-1).

And we are done :)

7 0
3 years ago
A certain organization recommends the use of passwords with the following​ format: vowel commavowel, consonant comma consonant c
zimovet [89]

The password format is = inpray93

vowel , consonant, consonant, consonant, vowel, consonant, number, number.

There are 21 consonants, 5 vowels and 10 number choices (0-9)

Since, there are 21 consonants and repetition is allowed so for 2nd, 3rd, 4th, and 6th positions 21 choices are available. For 1st and 5th positions, 5 choices  are available and for 7th and 8th position there are 10 choices (0 to 9).

Passwords are not case sensitive which means upper case and lower case letters are same.

So, the number of passwords can be =

5\times21\times21\times21\times5\times21\times10\times10

= 486202500

Part (b) question is not given. But it can be opposite to the first part i.e when the password letters are case sensitive.

This means all the letters are different.

So, number of passwords will be =

10\times42\times42\times42\times10\times42\times10\times10

= 31116960000

4 0
3 years ago
PLZ HELP!!!!!! I THINK ITS TRUE BUT IM NOT SURE
suter [353]
Yes it is true! it is true because two different numbers go to the same number, if it was false it would have to be the one number to two different numbers.

Hope that made sense!
5 0
3 years ago
What does 2 1/4 - 1 2/3?
Degger [83]

Answer:


eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

7 0
3 years ago
Read 2 more answers
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