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vovangra [49]
2 years ago
14

Four more than three times a number is thirteen. What is this number?

Mathematics
2 answers:
AnnyKZ [126]2 years ago
7 0

Answer:

n=3

Step-by-step explanation:

Four more than three times a number is thirteen

3n + 4 = 13 subtract 4 on both sides

3n + 4 - 4 = 13 - 4 Simplify

3n = 9 divide both sides by 3

3n/3 = 9/3 Simplify

n=3 Answer

I hope this helps

Ostrovityanka [42]2 years ago
4 0

Answer:

3

Step-by-step explanation:

13-4=9

9/3=3

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Evaluate the expression when a=5.<br>a² - 17​
jek_recluse [69]

Answer:

a²-17=8

Step-by-step explanation:

5²-17= 25-17

= 8

8 0
2 years ago
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Can someone answer this ?
lutik1710 [3]

Answer:

On Saturday, a local hamburger shop sold a combined total of 312 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold, How many hamburgers were sold on Saturday?

Step-by-step explanation:

x is the hamburgers

x times 3 is the cheeseburgers

answer x=78

check work 78 x 3 =234

78 + 234 = 312

8 0
3 years ago
Se vendieron un total de 430 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. Se vendieron
BartSMP [9]

Resolviendo un sistema de ecuaciones, veremos que se vendieron 250 boletos de adulto.

<h3>¿Cuántos boletos de adulto fueron vendidos?</h3>

Definamos las variables:

  • x = boletos de adulto vendidos.
  • y = boletos de estudiantes vendidos.

Se vendieron un total de 430 boletos, entonces:

x + y = 430

Y se vendieron 70 boletos de estudiante menos que boletos de adulto:

y = x - 70

Tenemos el sistema de ecuaciones:

x + y = 430

y = x - 70

Para resolverlo, podemos reemplazar la segunda ecuación en la primera:

x + y = 430

x + (x - 70) = 430

2x = 430 + 70 = 500

x = 500/2 = 250

Se vendieron 250 boletos de adulto.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

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5 0
2 years ago
the owner of business decides to replaces the carpet in the office with carpet tiles. each tile is a square with sides measuring
solniwko [45]
100 cm is the correct answer i am pretty sure
8 0
3 years ago
I do not understand these.
Vladimir [108]

Answer:

k(-1) = 7.

Step-by-step explanation:

k(-1) is the value of the function k when x = -1.

You read this off the graph.

Find the value of the point  on the graph which corresponds to x = -1.  From x = -1 on the horizontal axis move straight up until you meet the graph of k. Now look horizontally to the right  and read off the value on the vertical

 y-axis

You'll find it is 7.

6 0
3 years ago
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