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mina [271]
3 years ago
8

Subtract. (10x - 5) - (3x + 6)​

Mathematics
2 answers:
natali 33 [55]3 years ago
7 0

Answer:

7x−11

Step-by-step explanation:

Distribute the Negative Sign:

=10x−5+−1(3x+6)

=10x+−5+−1(3x)+(−1)(6)

=10x+−5+−3x+−6

Combine Like Terms:

=10x+−5+−3x+−6

=(10x+−3x)+(−5+−6)

=7x+−11

Flauer [41]3 years ago
3 0

Answer:

(10x-5) - (3x+6)

7x-11

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If r(x) = 3x - 1 and s(x) = 2x + 1, which expression is equivalent to (r/s)(6)?
zavuch27 [327]

Answer:

17/13

Step-by-step explanation:

r(6) = 3(6) - 1 = 17 and s(6) = 2(6) + 1 = 13.

Then (r/s)(6) = 17/13.

4 0
4 years ago
Todd wants to buy a new video game for $43.31. He has $55.50. The sales tax is 8.5% of the total purchase. Does Todd have enough
sammy [17]

Answer:

  yes

Step-by-step explanation:

We can estimate* that the total price including tax of the game will be less than ...

  $43.31 +10% of 43.31 = $43.31 +4.33 = $47.61

Todd easily has enough to pay for the game, including tax.

_____

You can work this more exactly a couple of ways.

  1. Price + tax = 1.085×$43.31 = $46.99 . . . less than Todd's budget

  2. Most Todd can afford: $55.50/1.085 = $51.15 . . . more than the game price

_____

* For estimating purposes, we like to use numbers that are easy to compute with. 10% is one such number, as it only requires moving the decimal point.

7 0
4 years ago
(8c2-2c) + (2c2+3c) in standard form
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

hello :

(8c²-2c) + (2c²+3c)= (8c²+3c²)+(3c-2c) =11c²+c .....standard form

5 0
3 years ago
Potassium fluoride is used for frosting glass. calculate the molarity of a solution prepared by dissolving 78.6 g of kf in enoug
melisa1 [442]
<span>There are a number of ways to express concentration of a solution. This includes molarity. Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

Molarity =  78.6 g KF ( 1 mol / 58.1 g ) / .225 L = 6.013 mol / L KF solution</span>
3 0
3 years ago
THIS IS EASY BUT PLEASE HELP ME IM BIT SLOW
murzikaleks [220]

Answer:

A: Isosceles (two sides the same)

B: Equilateral (all sides the same)

C: Scalene (all sides different)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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