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4 years ago

to solve x+11=23,Jasmine subtracted 11 from both sides of the equation. which property justifies this step?

Mathematics

2 answers:

musickatia [10]4 years ago

6 0

The best answer is C.

The subtraction quality pf equality states that when you subtract a the same number from both sides of an equation, the result is still equal.

alexgriva [62]4 years ago

4 0

Answer:

C. Subtraction property of equality.

Step-by-step explanation:

By Commutative property of addition,

a + b = b + a Where a and b are any numbers,

By Addition property of equality,

a = b ⇒ a + c = b + c Where s, b and c are any number,

By Subtraction property of equality,

a = b ⇒ a - c = b - c Where s, b and c are any number,

By Associative property of addition,

a + ( b + c ) = (a + b ) + c,

Here, the given equation,

x + 11 = 23,

Her step is x + 11 - 11 = 23 - 11

Hence, by the above explanation it is clear that,

Her step justified Subtraction property of equality.

Option C is correct.

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konstantin123 [22]

Answer:

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3 years ago

Mark Ronnie and Lisa bought a 75 inch curved 4000 television.Lisa put 650 more than Mark had.Mark had twice as much and then Ron

Alexeev081 [22]

So since you gave all of the equations of everyone's amount that they put in, it saves some work.

Let's add up everyone's contribution and then solve for x:

$(2x+500)+x+(650+2x+500)$

Then since we know the television costs $2,000, we can set this expression equal to that and simplify terms. Then we can solve for x:

$5x+1,650=2000$

$5x=350$

$x=70$

So since Ronnie put in 'x', we can say that Ronnie paid $70.

Since Mark put in '2x + 500', we can plug in 70 for x to find that Mark paid $640.

And since Lisa put in '650 + 2x + 500', we can plug in 70 for x again to find that Lisa paid $1,290.

3 0

3 years ago

Solve using the multiplication principle. Don't forget to perfom a check -3/5x = 6/35

julia-pushkina [17]

Hi! -3/7 X -2/7 equals 6/35

( The -2 is only negative not the 7 by the way )

I hope this helps you, Goodluck :)

3 0

3 years ago

Simplify. y = (x + 1)2 -

defon

Answer:

Step-by-step explanation:

Assuming it is supposed to be y = 2- (x+1)

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or if it is supposed to be y = -2(x+1)

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3 years ago

The volume V of a pyramid is given by the formula V=1/3Bh, where B is the area of the base and h is the height.

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4 years ago

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