1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tiny-mole [99]
4 years ago
5

Which properties did Marty use? Thank you very much!!

Mathematics
1 answer:
nadezda [96]4 years ago
5 0

Answer:123

Step-by-step explanation:

You might be interested in
Brenda and her best friend went on a vacation together. They both paid for a flight, and Brenda had a fancy room for $150 per ni
Mila [183]

Answer:

A. 2x + 150y = 1,500

   2x + 120y = 1,320

The flights were $300 each, and they stayed 6 nights.

B. $1,380

Step-by-step explanation:

Let x be the cost of the flight (in one side) and y be the number of nights on their vacation.

A. Brenda had a fancy room for $150 per night, then she paid $150y for y nights.  Brenda's total is $1,500, then

150y+2x=1,500

Brenda's friend had a smaller room for $120 per night, then she paid $120y for y nights.  Brenda's friend total is $1,320, then

120y+2x=1,320

Subtract two equations:

150y+2x-120y-2x=1,500-1,320\\ \\30y=180\\ \\y=6

Substitute into the first equation:

150\cdot 6+2x=1,500\\ \\900+2x=1,500\\ \\2x=600\\ \\x=300

Hence

2x + 150y = 1,500

2x + 120y = 1,320

The flights were $300 each, and they stayed 6 nights.

B. If a third friend joined them and stayed in a mid-range room for $130 per night, then he paid \$130\cdot 6=\$780

The total cost is

\$780+\$600=\$1,380

7 0
4 years ago
Solve for x <br><br> 6x + 11= - (6x + 5)
Semmy [17]

Answer:

x = -4/3

Step-by-step explanation:

6x + 11 = -6x - 5

12x = -16

x = -4/3

3 0
3 years ago
Read 2 more answers
A pet store sells goldfish and hermit crabs,
Elis [28]

Answer:

Cost = \$28

Step-by-step explanation:

Given

Represent Goldfish with g and hermit crabs with h.

The first statement, we have:

7g + 3h = 26

The second statement, we have:

4g + 5h = 28

Required

Determine the selling price of 6 goldfish and 4 hermit crabs

The equations are:

7g + 3h = 26 --- (1)

4g + 5h = 28 --- (2)

Make g the subject in (2)

4g + 5h = 28

4g = 28 - 5h

Divide both sides by 4

g = \frac{1}{4}(28 - 5h)

Substitute \frac{1}{4}(28 - 5h) for g in (1)

7g + 3h = 26

7(\frac{1}{4}(28 - 5h)) + 3h = 26

\frac{7}{4}(28 - 5h) + 3h = 26

Multiply through by 4

4 * \frac{7}{4}(28 - 5h) + 4*3h = 26*4

7(28 - 5h) + 4*3h = 26*4

Open bracket

196 - 35h + 12h = 104

196 -23h = 104

Collect Like Terms

-23h = 104-196

-23h = -92

Make h the subject

h = \frac{-92}{-23}

h = \frac{92}{23}

h = 4

Substitute 4 for h in g = \frac{1}{4}(28 - 5h)

g = \frac{1}{4}(28 - 5*4)

g = \frac{1}{4}(28 - 20)

g = \frac{1}{4}(8)

g = 2

This implies that:

1 goldfish = $2

1 hermit crab = $4

The cost of 6 goldfish and 4 hermit crabs is:

Cost = 6g + 4h

Cost = 6*\$2 + 4*\$4

Cost = \$12 + \$16

Cost = \$28

5 0
3 years ago
I need answer ASAP!!!!
frutty [35]
The answer is 1 since both expressions are equal.
7 0
4 years ago
Contesta si las siguientes proposiciones son falsas F o verdaderas V, colocando la letra que corresponda en el paréntesis. 1. La
AlexFokin [52]

Los valores de las proposiciones son:

  • 1) Falso
  • 2) Falso
  • 3) Verdadero
  • 4) Falso
  • 5) Verdadero
  • 6) Verdadero
  • 7) Falso
  • 8) Falso
  • 9) Falso
  • 10) Falso.

<h3>Analizemos las proposiciones.</h3>

Analizaremos cada proposicion para ver si esta falsa o verdadera.

1) "La recta está formada por un número finito de puntos."

Esto es falso, una recta esta formada por infinitos puntos. Si usaramos un numero finito de puntos, entonces tendriamos lugares donde la recta se corta.

2) " La magnitud de un ángulo depende de la longitud de sus lados."

Falso, el largo de los lados no tiene ninguna relación con la magnitud del angulo.

3) "Un rayo y una semirrecta son el mismo objeto geométrico."

Verdadero, ambos hacen referencia a una linea que tiene comienzo pero no tiene final.

4) "Un segmento tiene mayor longitud que un rayo"

Falso, un segmento tiene longitud finita y un rayo tiene longitud infinita.

5) "Por dos puntos solo se puede trazar una recta."

Verdadero, para cualquier par de puntos hay una sola recta que los conecta.

6) " La recta y el plano están formados por puntos."

Verdadero

7) "Por tres puntos cualesquiera, solo puede trazarse un plano."

Falso, segun cual par de puntos utilizemos para definir la recta, obtendremos un plano diferente.

8) "Por cuatro puntos cualesquiera solo puede trazarse un plano."

Falso, igual que antes.

9) "Si dos rectas se cruzan, forman 2 ángulos. "

Falso, si haces el dibujo, podras ver que se forman 4 angulos.

10) "La intersección de dos planos es un punto. ( )"

Falso, la intersección de dos planos es una linea.

Sí quieres aprender mas sobre geometría, puedes leer:

brainly.com/question/24784999

7 0
2 years ago
Other questions:
  • Round 23 miles per hour to the nearest ten miles per hour
    7·1 answer
  • Rewrite number without radicals or exponents
    8·1 answer
  • How to do this?
    12·1 answer
  • Is a supplement of a acute angle always obtuse? What if one angle is 30 and the other is 170?
    12·1 answer
  • The expression 5(2)^t5(2) t gives the number of leaves in a plant as a function of the number of weeks since it was planted. Wha
    9·2 answers
  • Please help me thanks.
    14·1 answer
  • A smart TV is on sale for 10% off. If the original price is $1,200, what is the sale price?
    9·2 answers
  • PICTURE ATTACHED: Solve the following equation algebraically: 3x2 = 12 a. +3 b. +2 C. +3.5 d. +1.5 Please select the best answer
    14·1 answer
  • Equations of Exponential Functions
    14·1 answer
  • Molique is taking a road trip every time he stops for gas he records the number of miles he has driven and the number of gallons
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!