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Anna007 [38]
3 years ago
6

Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours at 21 cm tall

candle will burn. How long will a 21 cm tall candle burn?
Mathematics
2 answers:
Alenkasestr [34]3 years ago
5 0

The answer is 12 hours. I got it right on my Khan Academy.

-BARSIC- [3]3 years ago
4 0
I would use ratio.
14:8 divide 2
7:4 times 3
21:12
12 hours before going out.
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Question 4(Multiple Choice Worth 4 points)
artcher [175]

Answer:

\sqrt{1}

Step-by-step explanation:

We know that a rational number cannot have roots. All of the answer choices cannot be simplified except for \sqrt{1}, which can become 1. Therefore, our answer is \sqrt{1}.

3 0
2 years ago
Suppose Bank One offers a certificate of deposit that pays $5,000 in four years for exchange for $4,000 today. What interest rat
vlada-n [284]

Answer:

Bank One is offering a simple interest rate of 6.25% per annum.

Step-by-step explanation:

Given that Bank One offers a certificate of deposit that pays $ 5,000 in four years for exchange for $ 4,000 today, to determine what interest rate is Bank One offering the following calculation must be performed:

(5000 - 4000) / 4 = X

1000/4 = X

250 = X

4000 = 100

250 = X

250 x 100/4000 = X

25000/4000 = X

6.25 = X

Therefore, Bank One is offering a simple interest rate of 6.25% per annum.

7 0
3 years ago
Val is going to plant y vegetable seeds in one garden 3y+5 vegetable seeds in another. Haw many seeds is val going to plant?
egoroff_w [7]

Answer:

4y+5 vegetable seeds.

Step-by-step explanation:

In order to find the total amount of vegetable seeds, you need to add y+3y+5.

You have to combine your like terms.

3y and y are like terms, so you add them to get 4y. 5 and 4y are not like terms, so you just write your expression as 4y+5.

Hope this helps!

5 0
3 years ago
Really need help on this , thanks so much! (:
Mazyrski [523]
-2y>12x-42
y<21-6x
so a is true
7 0
3 years ago
Lorena and Sebastian are both five years old. Every year they each get a cash present from their ncighbor.
Sonja [21]

14,  she will be 14 when she has more

8 0
3 years ago
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