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3 years ago

11

Write the expression in simplest form. (11 + 3) – 2(- 4 1 - 1) = NIO

1 answer:

Aleksandr-060686 [28]3 years ago

5 0

Answer:

11+3=14

-41-1=-42

14-2(-42)

-2(-42)

14+84

98

I hope this is good enough:

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Y decreased by 25 =10

KonstantinChe [14]

Written in standard form, y decreased by 25 = 10 is y - 25 = 10

Now let's solve:

y - 25 = 10
y = 10 + 25
y = 35

to check:

35 - 25 = 10

so, y equals 35

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Jamie received a piggy bank for her birthday every five days she earns four dollars in allowance for completing her chores at th

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Answer:

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Step-by-step explanation:

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An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to

Firlakuza [10]

Answer:

0.3689 ; 0.3592 ; 0.6301

Step-by-step explanation:

Spanish = S

French = F

German = G

n(S) = 37 ; n(F) = 38 ; n(G) = 21

n(SnF) = 17 ; n(SnG) = 7 ; n(FnG) = 10

n(SnFnG) = 3

n(SnF) only = 17 - 3 = 14 ;

n(SnG) only = 7 - 3 = 4 ;

n(FnG) only = 10 - 3 = 7

n(S) only = 37 - (14 + 3 + 4) = 16 ;

n(F) only = 38 - (14 + 3 + 7) = 14;

n(G) only = 21 - (7 + 3 + 4) = 7

Probability of not being in any language class :

Number of students not in any class (x)

(16+7+14+14+4+7+3+x) = 103

65 + x = 103

x = 103 - 65

x = 38

Probability, P = required outcome / Total possible outcomes

P(not in any class) = 38 / 103

= 0.3689

2.) probability of taking exactly one class :

Either Spanish or German or French

16/103 + 7/103 + 14/103 = 37/103 = 0.3592

3.) probability that atleast one of two students is taking a language class :

Probability that a student chosen is taking a language class :

Number of students taking a language class / total number of students

= 65 / 103

= 0.631

[P(takes class) * p(does not take class)] + [p(takes class) * p(takes class)]

(0.631 * 0.3689) + (0.631 * 0.631) = 0.6301

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3 years ago

Find the distance between points P(9,6) and Q(3,2) to the nearest tenth

Rufina [12.5K]

The answer would be 7.2

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3 years ago

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Respuesta de estas ecuaciones (Los "{ }" y "[ ]" son "( )" simplemente estan asi para poder diferenciarlos A) [-3+(6-8)]-[40+(5.

Ivahew [28]

Answer:

$A)\ [-3+ (6-8)] - [40+ (5.3-7) +20.2] = -63.5$

$B)\ -4 + [- 2.6-1 - (- 3.4)] + (- 5) * (- 3) + (- 10) =0.8$

$C)\ -22 * \{- 5+ [8.3- (3.6-9)]\} - (- 2) * (3) =-185.4$

$D)\ -9 - (- 2 + 5) * [- 3 + (- 5) - (+ 2) +1] =18$

$E)\ 40 * \{- 12 * [4 + (- 6) * (- 5) -15.3 + 12]\} - 2 =-14738$

$F) -21 * \{- [- 6 * (7-3)] - (7.6-8.3)\} - 89 =-607.7$

Step-by-step explanation:

$A)\ [-3+ (6-8)] - [40+ (5.3-7) +20.2] =$

Resuelve todas las expresiones en el paréntesis interior

$[-3-2] - [40 -1.7 + 20.2]$

Resuelve cada paréntesis

$-5 - 58.5$

$-63.5$

$B)\ -4 + [- 2.6-1 - (- 3.4)] + (- 5) * (- 3) + (- 10) =$

Resuelve todas las expresiones en el paréntesis interior

$-4 + [-0.2] + (- 5) * (- 3) + (- 10)$

Resuelve todas las multiplicaciones y paréntesis.

$-4 -0.2 + 15-10$

$=0.8$

$C)\ -22 * \{- 5+ [8.3- (3.6-9)]\} - (- 2) * (3) =$

Resuelve todas las expresiones en el paréntesis interior

$-22 * \{- 5+ [8.3 + 5.4]\} - (- 2). (3)$

Resuelve todas las multiplicaciones y paréntesis.

$-22 * 8.7 +6$

$-191.4 + 6$

$=-185.4$

$D)\ -9 - (- 2 + 5) * [- 3 + (- 5) - (+ 2) +1] =$

Resuelve todas las expresiones entre paréntesis interiores

$-9 - 3 * [- 3 - 5 - 2 +1]$

$-9-3 * -9$

$-9 + 27$

$= 18$

$E)\ 40 * \{- 12 * [4 + (- 6) * (- 5) -15.3 + 12]\} - 2 =$

Resuelve todas las expresiones entre paréntesis interiores

$40 * \{- 12 * [4 - 6 * - 5-15,3 + 12]\} - 2$

Multiplicar -6 por -5

$40 * \{- 12 * [4 + 30-15.3 + 12]\} - 2$

Resuelve todas las expresiones en el paréntesis interior

$40 *\{- 12 * 30.7\} - 2$

Quitar todos los paréntesis

$40 * -368.4 - 2$

$-14736 - 2 \\$

$=-14738$

$F) -21 * \{- [- 6 * (7-3)] - (7.6-8.3)\} - 89 =$

Resuelve todas las expresiones entre paréntesis interiores

$-21 * \{- [- 6 * 4] +0.7\} - 89$

Multiplicar -6 por 4

$-21 * \{24 +0.7\} - 89$

Quitar todos los corchetes

$-21 * 24.7 - 89$

$-518.7 - 89$

$=-607.7$

7 0

3 years ago