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3 years ago

Which of the following expressions does not mean the same as the other three?

2 answers:

7 0

The third one is different to the other three.
All the others can be written as x - 17
Meanwhile only the third one is written as x + 17.
Remeber the sequence of numbers can swap and + - makes -
- - makes +

Naddik [55]3 years ago

7 0

Hey there! You answer is x - (-17) . I hope this helped! Your fellow Brainly user, GalaxyGamingKitty.

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The Miller family visited Mama's Kitchen and ordered 4 hamburgers and 3 medium fries and paid $18.69. James ordered a medium dri

sergij07 [2.7K]

To answer the question, let x be the cost of each hamburger, y be the cost of each medium fries, and z be the cost of each medium drink. The equations that are described in the problem are,
(Miller ) 4x + 3y = 18.69
(James) x + 2y + z = 8.66
(Steven) 2x + y + z = 10.27
Solving simultaneously for the values of the variables give x = 3.36, y = 1.75, and z = 1.8.
Thus, each hamburger costs $3.36. Each medium fries cost $1.75, and each drink costs $1.8.

3 0

3 years ago

Trina uses 8.6 pints of blue paint and white paint to paint her bedroom walls.

max2010maxim [7]

<h3>Trina uses 3.44 or $\frac{ 17.2}{5}$ pints of white paint</h3>

Solution:

Given that,

Trina uses 8.6 pints of blue paint and white paint to paint her bedroom walls

3/5 of the amount is blue paint, and the rest is white paint

From given,

3/5 of 8.6 pints is blue paint

$Remaining = 1 - \frac{3}{5}\\\\Remaining = \frac{2}{5}$

Thus, 2/5 of 8.6 pints is white paint

How many pints of white paint did she use to paint her bedroom walls?

$White\ paint = \frac{2}{5} \times 8.6\\\\White\ paint = \frac{17.2}{5}\\\\White\ paint = 3.44$

Thus she uses 3.44 or 17.2/5 pints of white paint

5 0

3 years ago

Pedro is building a playground in the shape of a right triangle he wants to know the area of the playground to help him decide h

shusha [124]

Answer:

Amount of sand=Area of triangle(ABC)=1/2*AB*BC

Dimension of rectangle as length=BC and breadth=AB

Step-by-step explanation:

Given:

Pedro building a playground in shape of right angled triangle.

To Find:

How much sand he need to buy

And if playground changed to rectangle what will be the dimensions.

Solution:

Consider a ΔABC be the play ground vertex of playground,

And AB and BC be the sides making right angle.

The sand required to fill ground will be the amount of are covered by the ABC triangle.

So,

Area Of triangle(ABC)=1/2* base* height

Here base will be BC and height =AB

Therefore Area of Triangle(ABC)=1/2*BC*AB

Depending on the lengths of base and height amount of sand will be decided.

Now,

For Rectangle dimensions,

We know that if same sized triangles composes each other forms a rectangle.

It requires two triangle to form one rectangle as follows

(Refer the attachment)

Same sized Triangle ACD is imposed on it to from rectangle ABCD.

So dimension for rectangle will be same as the triangle

Dimension=length and breadth

i.e. length=base of triangle=BC

Breadth=Height of triangle=AB

i.e Breadth =AB.

5 0

3 years ago

Why is 85 a prime number

julia-pushkina [17]

85 is a composite number because 17×5=85

3 0

3 years ago

Read 2 more answers

Look at the picture! Express the following set in set-builder notation ?

Alex

Answer:

A. E={ $x|x\in N$ and $x$ is a multiple of 8}

Step-by-step explanation:

Let $x$ represent the set of natural numbers. Then we can write;

$x\in N$ .

The set of all natural numbers that are multiples of 8 is then written as;

$x\in N$ and $x$ is a multiple of 8.

E is the set of natural numbers that are multiples of 8 can then be written in set builder notation as;

E={ $x|x\in N$ and $x$ is a multiple of 8}

The correct choice is A

7 0

3 years ago