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Delicious77 [7]
2 years ago
11

The difference of A and B is 3 the sum of A and B is 13 what are the values of a and b

Mathematics
1 answer:
katen-ka-za [31]2 years ago
8 0

Answer:

a = 8 and b = 5

Step-by-step explanation:

A - B = 3

A + B = 13

2A = 16

A = 8

8 - B = 3

B = 5

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You randomly select one card from a 52-card deck. Find the probability of selecting a two or a five.
Vladimir79 [104]

Answer:

2/13

Step-by-step explanation:

there are 4 5s and 4 2s so

8/52

simplified is 2/13

3 0
3 years ago
Si elegimos un día de la semana al azar, ¿qué probabilidad hay de que sea fin de semana (ya sabemos que hay dos días…)?
irga5000 [103]

Answer:

La probabilidad que hay de que sea fin de semana es \frac{2}{7}

Step-by-step explanation:

La Probabilidad es la mayor o menor posibilidad de que ocurra un determinado suceso. En otras palabras, la probabilidad establece una relación entre el número de sucesos favorables y el número total de sucesos posibles. Entonces, la probabilidad de un suceso cualquiera A se define como el cociente entre el número de casos favorables (número de casos en los que puede ocurrir o no el suceso A) y el número total de casos posibles. Esta se denomina Ley de Laplace.

P(A)=\frac{numero de casos favorables}{numero de casos posibles}

En este caso:

  • número de casos favorables: 2 (cantidad de días del fin de semana)
  • número de casos posibles: 7 (cantidad de días totales en la semana)

Reemplazando:

P(A)= \frac{2}{7}

<u><em>La probabilidad que hay de que sea fin de semana es </em></u>\frac{2}{7}<u><em></em></u>

3 0
3 years ago
Write an expression for the cost of 1 uniform, add $13, $11 and $8 .
Liula [17]

Answer:

Hey there!

Let the cost of one uniform be c, so the expression becomes

c+13+11+18

Thus, we have c+42

Hope this helps :)

7 0
3 years ago
Read 2 more answers
F(x) = x/4 - 3
Ilya [14]
First plug in the equations, then simplify/cancel out terms until you get the answer

4 0
2 years ago
Luigi is the first person to finish a 5K race and is standing 13 feet beyond the finish line. Another runner, Mario, is still ru
11Alexandr11 [23.1K]

37 Feet


Simply do 24+13 to get 37

Mario has to go 24 feet to the finish line and another 13 feet to get to Luigi

3 0
3 years ago
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