How to solve 42j+18-19j=-28

j=-2

Step-by-step explanation:

42j+18-19j=-28

Combine like terms

23j +18=-28

Subtract 18 from each side

23j +18-18 = -28 -18

23j =-46

Divide each side by 23

23j/23 = -46/23

j = -2

j = -2

Step-by-step explanation:

Simplify. First, combine like terms:

(42j - 19j) + 18 = -28

23j + 18 = -28

Isolate the variable, j. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and equals:

Parenthesis

Exponents (& roots)

Multiplication

Division

Addition

Subtraction.

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First, subtract 18 from both sides:

23j + 18 (-18) = - 28 (-18)

23j = -28 - 18

23j = -46

Isolate the variable, j. Divide 23 from both sides:

(23j)/23 = (-46)/23

j = -46/23

j = -2

j = -2 is your answer.

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answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560