3 years ago

Can some one pls help me with this

Mathematics

1 answer:

dmitriy555 [2]3 years ago

3 0

Answer:

Step-by-step explanation:

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5. Evaluate the following expression for r = 5.<br> 3r + (2-4)

den301095 [7]

Answer:

If r= 5 in 3r+(2-4)

it will beome

3(5)+(2-4)

= 15+(-2)

= 15-2

= 13

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3 years ago

Calculate the degree of the interior angle of a regular polygon with 45 sides.

soldier1979 [14.2K]

Answer:

1080°

Step-by-step explanation:

hope it's helpful

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2 years ago

If there are 6 hours in a school day, 5 school days in a week, 4 school weeks in a

Vanyuwa [196]

Answer:

1080hrs

Step-by-step explanation:

$\frac{6hr}{1day} \times5 \frac{days}{week}$

days cancel, redefine week as =5days

$\frac{30hr}{1week} \times 4 \frac{weeks}{month}$

weeks cancel redefine 4 weeks = 1 month

$\frac{120hr}{1month} \times 9 \frac{month}{1year}$

months cancel, redefine 9months= 1years

$\frac{120 \times 9}{1year}$

1080hrs per year (if I mathed 120x9 correctly that is, I didn't use a calculator so please double check that 120x9=1080)

7 0

3 years ago

Read 2 more answers

15 - 1.5(y - 5) - 7.5 simplified

antoniya [11.8K]

Answer:

I hope that is useful for you :)

Step-by-step explanation:

$15 - 1.5y + 7.5 - 7.5 \\ 15 - 1.5y \\ 1.5(10 - y)$

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3 years ago

Kari wins 1,282 tickets at an arcade. For each group of 65 tickets, she will receive a prize.

soldier1979 [14.2K]

Answer: 18

Step-by-step explanation:

1282 divided by 65 = 19 R 47

65 - 47=18

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3 years ago

Can some one pls help me with this​

Can some one pls help me with this