18 is equal to one half of a number

Exact Form:

−10/3

Decimal Form:

−3.3...

Mixed Number Form:

−3 1/3

Answer:

-10/3

Step-by-step explanation:

Answer:

Its either x=273 or the given system has no solution.

Step-by-step explanation:

Solution by substitution method

x+y=275

and 75+50=200

∴0=75

a1/a2=10=Undefined

b1/b2=10=Undefined

c1/c2=-275/-75=3.6667

∴a1/a2 =b1/b2≠c1/c2

the given system has no solution.

Answer:

multiply both sides of the equation by 3

Step-by-step explanation:

When your trying to solve for a variable, do steps where you are isolating that variable.

In the equation given, to isolate b, get rid of the division first and we can do that through multiplication.

Answer:

4(9a - 4)

Step-by-step explanation:

Answer:

4(9a - 4)

Step-by-step explanation:

Given

36a - 16 ← factor out 4 from each term

= 4(9a - 4)

Answer:

t = 3s

Step-by-step explanation:

The equation t = 3s can be used to calculate the total cost.

Answer:

6,5

Step-by-step explanation:

1 dollar 30 cent = 130 cent

20 copies=130

1 copy=130/20=6,5

The cost of the copy per unit will be $0.065 for each copy.

The rate is the ratio of the amount of something to the unit. For example - If the speed of the car is 20 km/h it means the car travels 20 km in one hour.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

If the cost of making 20 copies is $1.30.

Then the cost of each copy is given by the division of $1.30 and 20. Then we rate is given as,

Rate = $1.30 / 20

Rate = $0.065 for each copy

The cost of the copy per unit will be $0.065 for each copy.

More about the rate link is given below.

https://brainly.com/question/14731228

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Answer:

180°

Step-by-step explanation:

ABCD is a parallelogram.

Measures of the opposite angles of a parallelogram are equal. Here [tex] \angle A, \:\: \angle C \: \: and\:\: \angle B, \:\: \angle D[/tex] are opposite angles.

[tex] \therefore m\angle A = m\angle C = 110\degree [/tex]

[tex] \& \:m\angle B = m\angle D = 70\degree [/tex]

[tex] m\angle A + m\angle B =110\degree + 70\degree [/tex]

[tex] m\angle A + m\angle B =180\degree [/tex]

The number of people that bought T-shirt is 2070 people

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"

To find the percentage of those that bought the T-shirt

We find 45% of 4,500

45/100 * 4500

2070

Hence, 2070 people out of the 4,500 people who attend the rock concert bought the T-shirt

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Answer:

Not the greatest.

Step-by-step explanation:

Not the greatest,  but I would call it a good score.

Answer:

1/5 decimal: 0.2

3/20 decimal: 0.15

8/25 decimal:0.32

3/50 decimal:0.06

9/20 decimal: 0.45

Answer:

0.2

0.15

0.32

0.06

0.45

Step-by-step explanation:

Turn the fractions into decimals by changing the place value

Answer:

Step-by-step explanation:

Given quadratic equation is,

y = -2x² + 4x + 5

y = -2(x² - 2x) + 5

y = -2(x² - 2x + 1 - 1) + 5

y = -2(x² - 2x + 1) + 2 + 5

y = -2(x - 1)² + 7

This equation is in the vertex form of the quadratic equation,

y = a(x - h)² + k

where, (h, k) is the vertex of the parabola.

Therefore, vertex of the given quadratic equation is (1, 7)

The equation can be rewritten as y = -2(x - 1)² + 7.

Therefore, the vertex of the graph of the function y = -2x² + 4x + 5 in the xy-coordinate plane is located at the point (1, 7).

Answer:

y= \frac{15}{7}x + 7

not sure if that will work so

y = 15x/7x + 7

Step-by-step explanation:

Answer:

165 is greater than or equal to 17.75x+5.25; 9 is greater than or equal to x

Step-by-step explanation:

The problem states that they have no more than $165. This means that they either use all the money, or they have leftover money, which means you need to use the 'greater than or equal to' sign. It says that tickets are $17.75 a person, and we're trying to find the number of people (x). You can write this as 17.75x. There is also a parking fee to add on to the equation, which is represented as +5.25. Now, we can solve!

I'm going to use an equal sign to replace the inequality symbol, but make sure to add the symbol at the end of the problem.

165=17.75x+5.25

159.75=17.75x

9=x

Our final answer is 9 is greater than or equal to x. Hope this helps!

Answer:

The inequality is $17.75x + $5.25 ≤ $165

and the amount of people who can go is 9

Step-by-step explanation:

if you subtract 5.25 from both sides, you'll get

17.75x ≤ 159.75

and when you divide both by 17.75, you'll get 9

Answer:

(3, - 8 )

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

(- 3, - 8 ) → (3, - 8 )

Responder:

26 litros

Explicación paso a paso:

Dado lo siguiente

Litros totales de agua utilizados = 20 litros

El inodoro en sí contiene 6 litros de agua.

Agua total consumida = litro de agua utilizada + agua contenida en el inodoro

Agua total consumida = 20 litros + 6 litros

Agua total consumida = 26 litros

Por lo tanto, el consumo total de agua del inodoro, asumiendo que se descarga una sola vez, es de 26 litros

Answer:

I think it is B I am sorry if wrong

Answer:

(−3)(2+1)

hope this helps, im not for sure of its fully correct.

Answer:

The answer is 16+18d

Answer:

I'm pretty sure it's 10.905

Answer:

x = 6

Step-by-step explanation:

Coach ticket = $180

first class ticket = $1020

people = 8

Let x be number of coach tickets

Then number of first class tickets = (8 - x)

x * 180 + (8 - x) * 1020 = 3120

180 X + 8 * 1020 - 1020 x = 3120

180 x + 8160 - 1020 x = 3120

180 x - 1020 x = 3120 -8160

- 840 x = - 5040

840 x = 5040

x = 6

So 6 coach class tickets and 2 first class tickets

Answer:

She bought 8 coach tickets

And 5 first class tickets

Step-by-step explanation:

390 x 8 = 3,120

1000 x 5 = 5,000

3,120 + 5,000 = 8,120

Answer:

19 h

Step-by-step explanation:

The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115

Answer:

2x - 1

Step-by-step explanation:

Simplify. Note that you cannot combine a term with a variable with a constant term. Divide 5 from both terms in the parenthesis:

1/5(10x - 5) = (10x - 5)/5

Divide 5 from both terms in the parenthesis:

10x/5 = 2x

-5/5 = -1

2x - 1 is your answer.

~

Answer:

1/5 (10x - 5)

[tex]taking common \: 5 \: from (10x - 5) \\ 1 \div 5 \times 5(2x - 1)[/tex]

2x-1 is your answer

Step-by-step explanation:

I think it's B, if you are missing a decimal point and the second term is 17.2 and not 172. otherwise none are equivalent

Answer:

D. 45/2 and (1)

A. 89/2 and ( 18 )

Step-by-step explanation:

ap3x

Answer:

Step-by-step explanation:

Let the 2 consecutive integers be x and x+1.

x²+(x+1)²=1684

x²+(x+1)(x+1)=1684

x²+x²+x+x+1=1684

2x²+2x-1683=0

Using quadratic formular

Answer:

(4x+1)(x+3)

Step-by-step explanation:

brainliest please!!

Answer:

its should be 20

Step-by-step explanation:

Answer:

Given that, x = 5

[tex]y = 4x \\ y = 4 \times 5 \\ \boxed{y = 20}[/tex]