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3 years ago

-3x + 5 ¾ + 12x - 2.25 if you answer this it is worth 100 points

Mathematics

2 answers:

Greeley [361]3 years ago

7 0

Answer: 9 x + 7 /2

Step-by-step explanation:

vazorg [7]3 years ago

3 0

Answer:

8 + 9x

Step-by-step explanation:

This is an algebraic expression. Our job here is to simplify it by combining like terms: combine the x terms and then combine the constants:

-3x + 5 ¾ + 12x - 2.25, after combining the x terms, is

5 ¾ + 9x - 2.25

Next, combine the constants. It's easier to convert -2.25 to -2 1/4 and then

add this 2 1/4 to 5 3/4:

8 + 9x

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B. Rob would like to create a triangle that is

Phantasy [73]

Answer:

$14y + 9$

Step-by-step explanation:

Perimeter of the given triangular above = sum of all its sides.

$= (y + 9) + 2y + (4y - 1) = y + 9 + 2y + 4y -1$

Collect like terms

$= y + 2y + 4y + 9 - 1$

$= 7y + 8$

If Bob creates a new triangle that is 7 less than twice of the perimeter of the triangle above, the expression of the new triangle would be:

$2(7y + 8) - 7$

Simplify

$2*7y + 2*8 - 7$

$14y + 16 - 7$

New perimeter = $14y + 9$

5 0

3 years ago

Simplificar la radicacion 18

bonufazy [111]

Answer:

441

Step-by-step explanation:

8 0

2 years ago

Last one for this :)

ddd [48]

Answer:

2/21 :)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Please help! Number 7

ELEN [110]

Answer:

the answer is A

because if the dot is filled in it has to be the greater than or equal to or less than or equal to sign. And the side that is shaded in is greater than one. so x must be greater than or equal to 1.

8 0

2 years ago

3 A buoy is 30 feet from the shore. You swim 3/5 the way to the buoy. How much farther do you have to swim to reach the buoy?

disa [49]

Answer:

12 feet

Step-by-step explanation:

30 divided by 5= 6

6 times 3= how far youve already swam(18 feet)

6 times 2= how far you have left(12 feet)

8 0

3 years ago