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My name is Ann [436]
4 years ago
6

Perimeter of a semi circle with diameter 30cm

Mathematics
1 answer:
Vsevolod [243]4 years ago
8 0

Answer:

77.12 cm to the nearest hundredth.

Step-by-step explanation:

The length of the curved part = 1/2 * 2 pi r

= 15 pi.

Total perimeter = 30 + 15pi

= 30 + 15*3.1416

= 77.124.

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3 years ago
There are 6 dogs and 12 cats in the backyard. Write the ratio of cats to total animals In 3 ways, in simplest form.
Luda [366]

Step-by-step explanation:

12:18

12 to 18

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5 0
3 years ago
Taylor and Nora go to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks
fgiga [73]

Answer:

The system if equation that can be used to derive this are

6x + 4y = 69 AND

12x + y = 96

The price of a drink is $7.5

Step-by-step explanation:

The question here says that Taylor and Nora went to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks and 4 bags of popcorn Nora spends a total of $96.00 on 12 drinks and bag of popcorn.And we are now told to write a system of equations that can be used to find the price of one drink and the price of one bag of popcorn. Using these equations,we should determine and state the price of a drink, to the nearest cent .

Now, Let's assume that the price of a drink is "X" and that of a bag of popcorn to be Y

The first person made a purchase which led to the equation

6x + 4y = 69______ equation 1

And the second person also made a purchase that lead to the equation

12x + y = 96_____ equation 2

We make y the subject of the formula in equation 2 and apply it in 1

Y = 96 - 12x

Now apply the above in equation 1

6x + 4y = 69

6x + 4(96 - 12x)= 69

6x + 384 - 48x = 69

42x = 384 - 69

X = 315/42

X = 7.5

Substitute x= 7.5 in equation 2

12x + y = 96

12(7.5) + y = 96

90 + y = 96

Y = 6

Therefore, the price of a drink is $7.5

4 0
3 years ago
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Inez earns $160 per month by babysitting. She saves 25% of her monthly salary. If her salary increases by 10% how much will she
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This person will now save $44
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3 years ago
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Hello da 234234r32 ef3qew3e2wr3qefwasdwasd
scoray [572]
Ah, thank you. your question truly made the most of sense.
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3 years ago
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