Simplify 5 - (-7) = 5+7

Answer:

expression:  (30/t) - 10

evaluation:  30/2 - 10 = 5

Step-by-step explanation:

Step-by-step explanation:

A = midpoint so the left line = right line

3x = 5x - 6

5x - 6 = 3x

5x - 3x = 6

2x = 6

x = 3

Answer:

the answer is 200 mph because you take and divide the 400 miles by 20 mph

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

(-2,5)

read the X axis and then y axis

Answer: 16

Step-by-step explanation:

Rephrase the expression

2a divide by 5

2a/5

Given value

a=40

Substitute the value into the expression

 2a/5

=2(40)/5

=80/5

=16

Hope this helps!! :)

Please let me know if you have any questions

Step-by-step explanation:

In that equation it tells you that your slope is 2/3. It also tells you that your y intercept is -4. (Remember slope is written in y=mx+b) So first you plot your y value. (Remember that y intercept is up and down and slope is rise/fall over run) So your first point should be located at -4. Now you can began putting in your slope. Since your slope is positive, go up two and go to the right 3 times (rise/run). That's how you graph your equation.

Answer:

50 ft

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

15/3= 5

25+2=27

27-5= 22

Hope this helps

Step-by-step explanation:

51^6(51-1)

51^6(50)

odd number × even number = even number

50 Is divisible by 25

Answer:

When dividing two fractions, the process is very easy.  You simply multiply the numerator fraction by the reciprocal of the denominator fraction.  In other words:

[tex]\frac{a}{b} \div \frac{c}{d} \\= \frac{a}{b} \times \frac{d}{c} \\= \frac{a \times d}{b \times c}[/tex]

Answer:

construction workers uses those measurements for buildings and architects

Answer:

True

Step-by-step explanation:

Cuz if u substitute (3,-3/2) it would work

Y = 1/2x - 3

-3/2 = 1/2(3)-3

-3/2 = 1.5 - 3

-3/2 = -1.5

& -3/2 is -1.5 as a decimal lol

______________________________

(I have included the graph below)

So your answer is only [tex]\bold{(-2\frac{1}{3},\frac{1}{3})}[/tex].

______________________________

Answer:

Step-by-step explanation:

New price = (1 + 5%) x old price

New price = 1.05 x old price

old price = 2.3 / 1.05

Old price = £2.19

9514 1404 393

Answer:

  £46

Step-by-step explanation:

The increase is ...

  0.05 · price = £2.30

Multiplying by 20 gives ...

  price = 20(£2.30) = £46.00

The price of the ticket before the increase was £46.00.

Answer:

Step-by-step explanation:

diameter=7917.5

r=3958.75

the earth is sphere

V=4/3x3.14xr^3

V=2.6*10^11

Answer:

(-2,3)

Step-by-step explanation:

Given data

the system of linear equation is presented as

3x+5y=9-----1

2x+3y=5-----2

solve simultaneously

3x+5y=9-----1  X 2

2x+3y=5-----2  X3

subtracting 2 from 1

 6x+10y=18

-6x+9y=15

0x+y=3

y= 3

put y= 3 in 1

3x+5(3)=9-----1

3x+15=9

3x= 9-15

3x= -6

x= -6/3

x= -2

Hence the ordered pair is (-2,3)

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

The only number that will equal 64 if it is the power of 2

Answer:

rational...bcz it can be written in the form of p/q

that's 15/100

it is rational number

Step-by-step explanation:

plz make me brainliest

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

It's answer is

y = 4x - 6

if x = - 1 Then

y = 4 * (- 4 ) - 6 = - 10

if x = 0

y = 4 * 0 - 6 = - 6

if x = 1

y = 4 * 1 - 6 = - 2

if x = 2

y = 4 * 2 - 6 = 2

hope it will help :)❤

9514 1404 393

Answer:

  105 minutes

Step-by-step explanation:

The volume of the terrarium is ...

  V = LWH

  V = (42 in)(10 in)(9 in) = 3780 in³

The volume of a box is ...

  V = (3 in)(3 in)(3 in) = 27 in³

Then the number of boxes it takes to fill the terrarium is ...

  (3780 in³)/(27 in³/box) = 140 boxes

The mermaid wants to fill it 3/4 full, so only needs 3/4 this number of boxes. That is 105 boxes. At the rate of 1 per minute, ...

  it will take 105 minutes to fill 3/4 of the terrarium

Answer:

¿Cuántos DVD de cada tipo debe fabricar y vender para que la utilidad sea máxima?

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800

Step-by-step explanation:

x : Número de DVD del modelo A

y : Número de DVD del modelo B.

                               MODELO A MODELO B TOTAL

Cantidad de caucho                  1x 1x                 50 kg.

Horas de mano de obra           1x 2x                 80 horas

U : Utilidad mensual.

La función objetivo, que se debe maximizar, es:

U=30   + 40y

x+ y [tex]\leq 50\\[/tex]  

x + 2y [tex]\leq 80[/tex]

x[tex]\geq 0[/tex]

y[tex]\geq 0[/tex]

Las coordenadas de los vértices de la región factibles son:

A (0, 0) B (50, 0) C (20, 30) D(0, 40)

Entonces, se evalúa la función objetivo en cada punto:

U (0, 0) = 30 (0) + 40 (0) = 0

U (50, 0) = 30 (50) + 40(0) = 1500

U (90, 0) = 30 (20) + 40 (30) = 1800

U (0, 40) = 30 (0) + 40 (40) =1600

Por consiguiente U tiene un valor máximo en C , en donde: x =20 ,  y = 30 .

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800.

 30 x  40 y

s.a.



   x  0 (3)

  y  0 (4)

Answer:

y = 6 - 2x

6 - 2 X 0 = 6

6 - 2 X 1 = 4

6 - 2 X 2 = 2

6 - 2 X 3 = 0

6 - 2 X 4 = -2

6 - 2 X 5 = -4

Answer:

Step-by-step explanation:

iF we have a normal distribution then the probability is 95.45%.

Answer:

x = 4

Step-by-step explanation:

3x - 10 = 2 | Given

3x = 12 | Add 10 to both sides to isolate 3x

x = 4 | Divide both sides by 3 to get the value of x

Answer:

4

Step-by-step explanation:

3x - 10 = 2

add

3x = 12

divide

x = 4

Answer:

No solution

Step-by-step explanation:

Answer:

Parallel lines have the same slope. Because the functions \displaystyle f\left(x\right)=2x+3f(x)=2x+3 and \displaystyle j\left(x\right)=2x - 6j(x)=2x−6 each have a slope of 2, they represent parallel lines. Perpendicular lines have negative reciprocal slopes. Because −2 and \displaystyle \frac{1}{2}

2

1

are negative reciprocals, the equations, \displaystyle g\left(x\right)=\frac{1}{2}x - 4g(x)=

2

1

x−4 and \displaystyle h\left(x\right)=-2x+2h(x)=−2x+2 represent perpendicular lines.

Answer:

Intercepting.

Step-by-step explanation:

The line x=10 is a straight vertical line going through all the points where x=10, as the equation suggests.

The line y=10 is a horizontal line going through all the points where y=10.

When you graph them, they intersect in a perfect cross.

Answer:

a- 320 and b- 20

Answer:

m = -2

Step-by-step explanation:

y = -2x - 3