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harina [27]
3 years ago
10

a candle is burning at a linear rate. The candle measures five inches two minutes after it was lit. It measures three inches eig

ht minutes after it was lit. What was the original length of the candle?​
Mathematics
1 answer:
kaheart [24]3 years ago
3 0

Answer:

5 2/3 inches.

Step-by-step explanation:

8-2=6 minutes and 5-3=2 inches so it lost 2 inches in 6 minutes. This means it loses an inch every three minutes. Since we have to go back by 2 minutes we will have to figure out how much length we have to add to the candle to figure out how long it was originally by multiplying by 2/3 as 2 inches is 2/3 the required to remove an inch, so 1 inch * 2/3 = 2/3 of an inch. Add that to the length at two minutes and we have 5 2/3 inches as its original size.

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Wayne has a recipe on a 3 inch by 5 inch index card that he wants to    enlarge to 15 inches long. How wide will the enlargement
SVETLANKA909090 [29]
I'm not completely sure which way they would like for you to do it
but anyways

3 to 15 is a times 5
so 5 times 5 is 25
so a possible width can be 25
as in 15 by 25

or

5 to 15 is times 3
so 3 times 3 is 9
so a possible width can be 9
as in 15 by 9

I personally think 25 inches wide would be the better answer
5 0
4 years ago
Determine whether the given lengths can be sides of a right triangle. Explain. 10 in., 24 in., 26 in.
notsponge [240]
10 in, 24 in, and 26 in. By the Converse of the Pythagorean Theorem, the lengths must satisfy the equation c² = a² + b². Let 26 = hypotenuse and 10 and 24 the legs of the triangle.
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676 = 100 + 576
676 = 676.
Yes, they can be lengths of a right triangle.
4 0
3 years ago
Find the sum of -3x2 -4x+3 and 2x2-x+3
Alika [10]

Answer:

Assuming the 2 at the ends are the exponents,

the answer is -x^2-5x+6 (x^2+5x-6)

from here, it cannot be simplified more

Explanation --

Just add everything by putting the terms in parentheses and adding them.

Keep simplifying by putting the like terms together and adding/subtracting them.

At the end, you come up with -x^2-5x+6, so multiply -1 on the whole thing (by putting parentheses on its sides. This makes x positive. But they are the same thing, but this step is just for simplifying the end product a little more.

Hope this helps!! Have a nice day!

5 0
3 years ago
What is 90% of 50?<br> Show all work
Natali [406]
First find out what 10 percent of 50 is
Do 50/10
I got 5
Then do 5 times 9 to get your answer
You should get 45. Thanks (:
8 0
3 years ago
Read 2 more answers
I need it done asapp <br> Will give brainly!!
brilliants [131]

Answer:

Step-by-step explanation:

4(5-2)+(-7)(0.5)

20-8+(-3.5)

12-3.5

8.5

6 0
3 years ago
Read 2 more answers
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