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Aleks04 [339]
3 years ago
8

A(n) ______________________ is a letter used as a placeholder for an unknown value.

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0
The answer is variable, he’s correct.

Variables are letters used to substitute unknown values, as the question stated.
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El entrenamiento que hace marco 10 dias antes de su carrera es constante. Diariamente corre 45 minutos a una velocidad de 30 km-
alexira [117]

Responder:

225 kilometros

Explicación paso a paso:

Dado que :

Velocidad de funcionamiento = 30 km / h

Duración = 45 minutos

Número de días = 10 días

Distancia total recorrida por día:

Duración en horas:

45 minutos / 60 = 0,75 hora (s)

Así, la distancia recorrida por día:

Tiempo de velocidad

30 km / h * 0,75 h = 22,5 km

Por lo tanto, la distancia total recorrida durante 10 días:

Distancia recorrida diariamente * 10

22,5 kilometros * 10 = 225 kilometros

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3 years ago
1.5.3 Quiz: Literal Equations and Formulas
sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

the real conversation equation is f = 9/5 C + 32. but for the sake of this problem we are ignoring the coefficient.

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2 years ago
Which values of x make the equation |x - 7| = x - 7 true?<br><br> 9<br> 0<br> 3<br> 8<br> -7
Vlad [161]
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I might not be right but that’s what I got.
3 0
3 years ago
The inequality x ≥ -3 is satisfied by point (0, -2).<br> True<br> False
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This inequality is true doll!!
8 0
3 years ago
Read 2 more answers
Bob decided to go to college, the cost of going to school will be $4,474 per semester, (there are 2 semesters per year) plus $38
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

1 semester = 4474

8 semester = 8* 4474                    35792

1 semester books = 389

8 semester books = 8* 389            <u> 3112 </u>

Total                                                38904  

If he is going to pay this off in 10 years, he would have to have an increase of 3890.40 (after all income taxes) to pay it off. Fewer years would mean dividing by the number of years.

So for 8 years for example, he would need 4863 every year.

That number is obtained by dividing 38904 / 8

In 6 years he would need

38904/6 = 6484 extra dollars.        

5 0
3 years ago
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