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4 years ago

3 + (-5) ???????????

Mathematics

2 answers:

Scrat [10]4 years ago

7 0

3 + (-5) is the same as 3 - 5 which equals to -2.

Note that + and - give -, in other words, - overrides +.

Hope this helps.

antoniya [11.8K]4 years ago

5 0

Answer: -2 If it just 3+(-5) then it should be negative 2

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Ray delivered 3/8 of the newspapers on his route in the first hour and 4/5 of the rest in the second hour what fraction of the n

Temka [501]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

Let the total number of Newspapers be x

Number of newspapers delivered in first hour of his route= $\frac{3}{8}$ of x

Total number of newspapers delivered in first hour= $\frac{3}{8}$ x

Number of newspapers left= x- $\frac{3x}{8}$

Number of newspapers left= $\frac{8x-3x}{8}$

Number of newspapers left= $\frac{5x}{8}$

Number of newspapers delivered in second hour=4/5 of $\frac{5x}{8}$

Number of newspapers delivered in second hour= $\frac{x}{2}$

Fraction of newspapers delivered in second hour is= $\frac{1}{2}$

Hence, the correct answer is $\frac{1}{2}$

8 0

4 years ago

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Kisachek [45]

Answer:

x=3, y= -2

Step-by-step explanation:

Multiplying :

(4x+3y =6)*-3

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12x+20y= -4

Add the equations

20y-9y = -4-18

11y = -22

y= -22/11 = -2

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3 years ago

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nataly862011 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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Finger [1]

Answer:

Step-by-step explanation:

2z = 4a/m +3

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×m ×m