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4 years ago

PLEASE HELP Solve. 5x+2/2 = 2x - 1 X = ________ ?

1 answer:

4 0

5x + 2/2 = 2x - 1
2/2 is basically 1 so
5x + 1 = 2x - 1
isolate the variable
5x + 1 = 2x - 1
-1 -1
5x = 2x -2
-2x -2x
3x = -2
solve
3x/3=-2/3
x=-2/3

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3 years ago

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a chess player played 136 games total. If he won 56 of the games, what is the ratio of games he lost to games he won?

wolverine [178]

Answer:

80:56

Step-by-step explanation:

if you do 136-56, you get 80. therefore the number of games lost is 80. you already know he won 56, so the ratio is 80:56.

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3 years ago

Gina visits her local farm stand to buy apples and oranges to make a fruit salad. She has $10.00 to spend. If she buys only ora

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Answer:

29 oranges rounding up but the exact answer is 29.41176

Step-by-step explanation:

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3 years ago

Given: Quadrilateral PQRS is a rectangle. Prove: PR = QS

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Answer:

Given: Quadrilateral P QR S is a rectangle.

To prove :PR= Q S

Construction : Join PR and Q S.

Proof: In Rectangle PQRS, and

→ taking two triangles PSR and Δ QRS

1. PS = Q R

2. ∠ PS R = ∠ Q RS [Each being 90°]

3. S R is common.

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3 years ago

Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial. $\[x^2 + 22x + \under

saw5 [17]

Answer:

$\[x^2 + 22x + 121\]$

Step-by-step explanation:

Given

$\[x^2 + 22x + \underline{~~~~}.\]$

Required

Fill in the gap

Represent the blank with k

$\[x^2 + 22x + k\]$

Solving for k...

To do this, we start by getting the coefficient of x

Coefficient of x = 22

Divide the coefficient by 2

$Result = 22/2$

$Result = 11$

Take the square of this result, to give k

$k= 11^2$

$k= 121$

Substitute 121 for k

$\[x^2 + 22x + 121\]$

The expression can be factorized as follows;

$x^2 + 11x + 11x + 121$

$x(x + 11)+11(x+11)$

$(x+11)(x+11)$

$(x+11)^2$

Hence, the quadratic expression is $\[x^2 + 22x + 121\]$

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3 years ago

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