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omeli [17]
4 years ago
9

Evaluate the expression. ( – 5+ – 9)× – 3÷ – 2

Mathematics
2 answers:
gayaneshka [121]4 years ago
6 0

Answer:

-21.

Step-by-step explanation:

( – 5+ – 9)× – 3÷ – 2

Using order of operations we work out the parentheses first:

= (-5 - 9) * -3 / 2

= -14 * -3 / -2  Now the multiplication followed by the division:

= 42 / -2

= -21.

Ronch [10]4 years ago
3 0

Answer:

-21

Step-by-step explanation:

( - 5+ - 9) \times - 3 \div - 2

Solve the brackets first.

( - 14) \times - 3 \div - 2

Division comes next.

( - 14) \times - 3/-2

Cancel the negative signs.

- 14 \times 3/2

Multiply the terms.

-42/2

=-21

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lets add the whole parts and the fraction parts apart:
1 week Miles = (4 + 4 + 4 + 2 + 2) + (1/2 + 1/2 + 1/2 + 3/4 + 3/4)
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</span>we can reduce the last fraction:
1 week <span>Miles = (16) + (3/2 + 3/2)
</span>1 week <span>Miles = (16) + (6/2)
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</span>1 week <span>Miles = 19
</span>therefore Carolyn runs 19 miles each week, so for 4 weeks we have to add 19 four times or multiply it by 4, is the same:
4 weeks <span>Miles = 4*19
</span>4 weeks <span>Miles = 76
hence Carolyn runs 76 miles in 4 weeks.</span>
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