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2 years ago

What is the answer to −1 + (-3)

Mathematics

2 answers:

son4ous [18]2 years ago

8 0

The answer is too.. -1 + (-3) is equal too -4.

kolezko [41]2 years ago

4 0

Answer:

-4

Step-by-step explanation:

-1 + -3 = -4

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2 years ago

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2 years ago

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Sam practices his guitar for 9 hours each week he practices each song for 3 1/2 hours. What is the greatest number of song he ca

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Answer:

The greatest number of song he can practice in a week is 2.

Step-by-step explanation:

Suppose, the greatest number of song he can practice in a week is $x$

He practices each song for $3\frac{1}{2}$ hours. So, the total time required for practicing $x$ number of songs $= (3\frac{1}{2}*x)$ hours.

Given that, he practices his guitar for 9 hours each week.

So, the equation will be......

$3\frac{1}{2}*x= 9\\ \\ x= 9\div 3\frac{1}{2}\\ \\ x=9\div \frac{7}{2}=9 \times \frac{2}{7}=\frac{18}{7}= 2.571.... \approx 2$

(Rounded as the greatest whole number)

Thus, the greatest number of song he can practice in a week is 2.

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2 years ago

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