Help, please

[Fragile Dreams]

It would be greatly appreciated if someone would help me with how to solve this equation.

(5 + r) - (6 - r) = 13

Thank you.

 

[pka]

(5 + r) - (6 - r) = 13
−1+2r=13

 

[Fragile Dreams]

Hmm, okay. What about this one...

Find the measure of each angle.

11x* and 6(x - 4)*

How would I solve it???

 

[Mrspi]

Hmm, okay. What about this one...

Find the measure of each angle.

11x* and 6(x - 4)*

How would I solve it???

I think you need to give us more information about these angles.

Are the angles equal in measure? If so, then you would use this equation:
11x = 6(x - 4)

Are the angles complementary? If so, the sum of their measures should be equal to 90, and
11x + 6(x - 4) = 90

Are the angles supplementary? If so, the sum of their measures should be equal to 180, and
11x + 6(x - 4) = 180

Only you know the relationship that was given for the two angles...

I hope this helps you.

 

[Fragile Dreams]

Hmm, the angles are neither. One is obtuse, the other is acute. That's all the information it gives me.

 

[Fragile Dreams]

Oookayy... One last question....hopefully

Solve each inequality.

A supermarket manager wants to prive a box of cereal. During a sale in which each box is marked off $1.50, the manager wants 5 boxes to sell for less than 3 boxes did before the sale. Write and solve an inequality to find the price the supermarket should charge for a box of cereal.

Mmm, it's more of writing the inequality that has me stumped...again.

 

[Fragile Dreams]

Mmm, would it be:

5x - 1.50 < 3x

...

x.x

 

[stapel]

1) (5 + r) - (6 - r) = 13

Already answered.

2) Find the measure of each angle: 11x° and 6(x - 4)°

As noted, without any information about the angles (from a picture or other description), there is no way to answer this question.

3) A supermarket manager wants to prive ["price"?] a box of cereal. During a sale in which each box is marked off $1.50, the manager wants 5 boxes to sell for less than 3 boxes did before the sale. Write and solve an inequality to find the price the supermarket should charge for a box of cereal.

Assuming you mean "x" to stand for "the original price of one unit", then "5x" stands for "five times the original price", and "5x - 1.5" stands for "$1.50 off of five boxes". Is this what you meant?

Or should you find an expression for "$1.50 off one box"? And then create an expression for "five boxes at this new price"? And then set that "less than three boxes at the original price"?

And then you'd need to solve for the value of x, of course.

4) Please post any new questions as new threads, rather than as appendices to old threads. Thank you.

Eliz.