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juin [17]
3 years ago
11

Find the interior angles of a regular polygon which has 6, 10 and 20 sides​

Mathematics
1 answer:
andrew-mc [135]3 years ago
4 0

Answer:

(6)=120°

(10)=72°

(20)=36°

Step-by-step explanation:

(n-2)×180°

(6-2)×180°=720°

6÷720°=120°

10÷720°=72°

20÷720°=36°

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balu736 [363]

Answer:

14.3%

Step-by-step explanation:

175.90 - 150.75 =25.15 = 14.3%

8 0
4 years ago
Seven cakes cost £2.10 how much do 10 cakes cost
Len [333]
Ten cakes costs $2.19 (pounds, but I don't have a pounds symbol on my computer) because if you divide $2.10 by seven you get $0.3, and if you add 3×0.3 (because we have seven, and we need to add three more to get ten) we get $0.9.
 
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7 0
3 years ago
.<br> Solve for x:<br><br> 2% of x = 17<br><br> a 34<br><br> b 8.5<br><br> c 85<br><br> d 850
blsea [12.9K]

Answer:850

Step-by-step explanation:

To find this 2% of x= 17

2/100×x=17

2x/100=17

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4 0
4 years ago
3/4 ÷ 6/7 need help nowww
Lostsunrise [7]

Answer:

7/8 or in decimal form .87

Step-by-step explanation:

8 0
4 years ago
A store marks up all of their merchandise by 70%. The floor price of a scarf is $117.25.
KiRa [710]

Answer:

  $68.97

Step-by-step explanation:

Markup is the difference between the cost of an item and the price at which it is sold:

  cost price + markup = selling price

Here, the markup is said to be 70%. The base for that percentage can be either the cost price or the selling price. The way this question is worded suggests the markup is 70% of the cost price.

So, we have ...

  cost price + 0.70 × cost price = selling price

or

  cost price × (1 + 0.70) = selling price

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Then, to find the cost price, we can divide by its coefficient in this equation. Doing that gives ...

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The store's purchase price before the markup for this item was $68.97.

4 0
3 years ago
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