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Savatey [412]
3 years ago
15

A number is decreased by seven. Then, the new number is multiplied by 3 to get an answer of -9.

Mathematics
2 answers:
Alexus [3.1K]3 years ago
6 0
The answer is 4 because of the symbol
enyata [817]3 years ago
5 0

Answer:

The answer is C.4.

Explanation:

What I did was to divide -9 by 3 to get -3. Then I added 7 to -3, which got me to the answer of 4.

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Un futbolista ha metido 2/9 del número de goles marcados por su equipo y otro la
storchak [24]

Answer:

77 goles

Step-by-step explanation:

Un futbolista ha marcado 2/9 del número de goles marcados por su equipo.

Otro anotó una cuarta parte del resto.

El resto = 1 - 2/9

= 7/9

De ahí que otro futbolista anotó

= 1/4 de 7/9

= 7/36

Si los otros jugadores han marcado 45 goles

Tenemos que averiguar la fracción de goles que marcó el otro jugador

Deje que el número total de goles marcados por el equipo durante la temporada = 1

Por lo tanto:

1 - (2/9 + 7/36)

1 - (8 + 7/36)

1 - 15/36

1 - 5/12

= 7/12

¿Cuántos goles marcó el equipo a lo largo de la temporada?

El número total de goles que marcó ese equipo se calcula como:

7/12 × x = 45

Donde x = número total de goles

7x / 12 = 45

Cruz multiplicar

7x = 45 × 12

x = 45 × 12/7

x = 77,142857143

Aproximadamente = 77 goles

7 0
3 years ago
82 decrease by 10 percent
zzz [600]

Answer:

Percentage decrease = 10% × 0.82 

New value = 0.82 - Percentage decrease

Let me know if this helps! :)

8 0
2 years ago
The sum of 7 and three times a number b is at least 12
Allushta [10]

Answer:

The expression is 7+3b≥12

The solution is b≥5/3

Step-by-step explanation:

7+3b≥12

3b≥5

b≥5/3

6 0
3 years ago
Use the rule for y= -6x +8 to find the output if the input is x=20
lisov135 [29]

Answer:

The output of the function y = -6x + 8 when the input is x = 20 is -112.

Step-by-step explanation:

y = -6x + 8

Input the value x = 20.

y = -6(20) + 8

Multiply -6 and 20.

y = -120 + 8

Add -120 and 8.

y = -112.

8 0
3 years ago
A bag contains 63 marbles, some red and some green. The ratio of red marbles to green
Nikolay [14]

Answer:

45 green marbles

Step-by-step explanation:

6 0
3 years ago
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