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IrinaK [193]
3 years ago
12

What is the area of a circle with a radius of 40 cm? cm2 (Use 3.14 for Pi.)

Mathematics
1 answer:
ira [324]3 years ago
5 0
A= pi x radius squared

A= 3.14 x 40squared

A= 5024 cm2

Hope this helps ya.
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Answer:

The correct answer is,

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emmasim [6.3K]

Matt earns $4 and $3 for 1 load of laundry and 1 load of dishes respectively

<u>Solution:</u>

Given, Matt gets paid at home for doing extra chores.

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Let the amount for 1 load of laundry be m and amount for 1 load of dish be n.

Now, last week, he did 6 loads of laundry and 1 load of dishes, and his parents paid him $27.

Then, 6 \times amount for 1 load of laundry + 1 \times amount for 1 load of dish = 27

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The week before, he finished 1 load of laundry and 9 loads of dishes, earning a total of $31

Then, 1 \times amount for 1 load of laundry + 9 \times amount for 1 load of laundry = 31  ⇒m + 9n = 31 ⇒ (2)

Now let us solve equations (1) and (2)

0 – 53n = - 159

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n = 3

Now, substitute n value in (1) ⇒ 6m + 3 = 27 ⇒ 6m = 24 ⇒ m = 4

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What is the property of combining negative and positive numbers
vodomira [7]

Answer:

The answer will always be negative

Step-by-step explanation:

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