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dimulka [17.4K]
3 years ago
7

9. Write a real-world problem that could be represented by 7.5x = 5.5x + 25. (Example 4)

Mathematics
1 answer:
igomit [66]3 years ago
8 0

Answer:

There are a lote of examples for a real world problem that could be solve with the equation, you need that the x in both sides represents the same thing.

This is what i came up with:

Sam bought 7.5 kilos of oranges, which cost the same as buying 5.5 kilos of oranges plus $ 25

The equation that describes the above is

7.5x = 5.5x + 25

where x is kilograms of orange.

Solving for x you will find the cost of 1 kilogram:

7.5x-5.5x=25\\2x=25\\x=12.5

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On a coordinate plane, rhombus A B C D is shown. Point A is at (1, 1), point B is at (negative 2, negative 3), point C is at (ne
lions [1.4K]

Answer:

20 units

Step-by-step explanation:

We are given that

On a coordinate plane , rhombus ABCD in which point A is at (1,1) and point B is at (-2,-3), point C is at (-5,1) and D is at (-2,5).

We have to find the perimeter of rhombus ABCD.

Distance formula : \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using the distance formula

Side AB=\sqrt{(-2-1)^2+(-3-1)^2}=5 units

We know that sides of rhombus are equal

Therefore, AB=BC=CD=AD=5 units

Perimeter of rhombus=4\times side

Perimeter of rhombus=4\times 5=20 units

Answer: 20 units

4 0
3 years ago
Read 2 more answers
HELP ME FOR BRIANETEST
Nataliya [291]

As indicated on the number line 1/3 is the same as 2/6 so we get

Answer: 2/6 + 5/6 = 7/6

8 0
4 years ago
Triangle ABC is shown on the coordinate plane below . The triangle is reflected across the y - axis and then translated 3 units
borishaifa [10]

Answer:is D

Step-by-step explanation:

5 0
3 years ago
Thrifty supply store normally sells candy bars for .59cents
Assoli18 [71]

Answer:

well that is a pretty good deal i might have to go there

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP ITS URGENT
tatyana61 [14]

Hello from MrBillDoesMath!

Answer:

#1. Choice a,  m = -3

#2 Choice b, 292+13m

Discussion:  

#1:

(mx+8) (2x-4)  =  2 m x^2 - 4 m x + 16 x - 32

                       = m(2x^2)  + x( -4m+16) -32

If this expressions equals

                       = -6x^2 + 28x - 32

then 2m = -6 and -4m+16 = 28, which gives m = -3. That is Choice A.

                         

#2

Choice b:

 a(n) = 292 + 13n  , n > = 1

 a(1) = 292 + 13(1)  = 305

 a(2) = 292 + 13(2) = 292 + 26 = 318

 a(3) = 292 + 13(3) = 292 + 39 = 331

 a(4) = 292 + 4(13) = 292 + 52 = 344

The sequence a(n) values match those given in the Question.

Thank you,

MrB

3 0
4 years ago
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