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Darya [45]
3 years ago
12

The price of a necklace was reduced from $30 to $21. By what percentage was the price of the necklace reduced

Mathematics
1 answer:
grigory [225]3 years ago
3 0

Answer:

= 30% decrease

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Help! This is due today and I'm stuck on this problem.
Varvara68 [4.7K]

Answer:

280.6 m^2

Step-by-step explanation:

<u>find the length of each side:</u>

you're only given h = 9 m

the formula for h is  h=\frac{\sqrt{3} }{2} *a, where a is a side length of the hexagon

plug h in:

9=\frac{\sqrt{3}}{2}*a\\\\a=9*\frac{2}{\sqrt{3}}\\\\

a ≈ 10.392 m

<u>now find the area of a triangle:</u>

1/2 (10.392)(9) = 46.764 m^2

multiply that by 6 and you get 280.584 ≈ 280.6 m^2

you can also use the regular hexagon area formula instead of finding the individual area and multiplying by 6: \frac{3\sqrt{3} }{2} *a^2

7 0
3 years ago
Read 2 more answers
Can anyone plz help me
ser-zykov [4K]

Answer:

C. Veggie Delight

Step-by-step explanation:

1/5 is 20 cents so 40 cents make a pound then you compare them to the rest.

6 0
3 years ago
Read 2 more answers
Christina paid $2 for 5/8 of a gallon of gas.How much does it cost per gallon​
vladimir1956 [14]

Answer:

$3.20

Step-by-step explanation:

I divided the $2 by 8 to see how much 1/8 a gallon cost.

I got 0.40

Multiple this by 8 to get 8/8 or 1 gallon.

You get 3.2

so $3.20

Hope this helped. :)

5 0
3 years ago
Find the product of 52.6 x 9
marta [7]

Answer: 473.4

Step-by-step explanation: if you can't solve it, break the first number apart, multiply both numbers, then add them together. That way there not such big numbers :)

8 0
3 years ago
109)
Lubov Fominskaja [6]
I strongly believe the answer is c
Hope this helps in some way:)
7 0
3 years ago
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