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Vera_Pavlovna [14]
3 years ago
5

What is the approximate percent change in a temperature that went down from 120 degrees to 100 degrees?

Mathematics
2 answers:
mojhsa [17]3 years ago
6 0

The percent would be 17%

Mumz [18]3 years ago
4 0
(120-100)/120
=20/120
=16.66666666
=17%
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8 0
3 years ago
Use a double angle or half angle identity to find the exact value of each expression
inna [77]

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cos²(<em>θ</em>) + sin²(<em>θ</em>) = 1   ==>   sin(<em>θ</em>) = -√[1 - cos²(<em>θ</em>)] = -3/5

Now recall the double angle identity for sine:

sin(2<em>θ</em>) = 2 sin(<em>θ</em>) cos(<em>θ</em>)

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4 0
3 years ago
Use distributive property to rewrite
galben [10]
The distributive property....u r basically multiplying the number outside of the parenthesis by everything inside the parenthesis...this gets rid of the parenthesis.

3(-4x + 8)...distribute the 3 thru the parenthesis
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-12x + 24 <===

4(x - 6y) =
(4 * x) - (4 * 6y) =
4x - 24y <===

6(5 - q) =
(6 * 5) - (6 * q) =
30 - 6q <===

1/2(c - 8) =
(1/2 * c) - (1/2 * 8) =
1/2c - 4 <===

-3(5 - b) =
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(d + 2)(-7)....re-arrange
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-7d + (-14) =
-7d - 14 <===











3 0
3 years ago
Noelle used 17 lemons to make lemonade. This was 85% of all the lemons
LuckyWell [14K]

Answer:

20 lemons

Step-by-step explanation:

Let the number of lemons = 'x'

85% of x = 17

\frac{85}{100}*x = 17\\\\x = \frac{17*100}{85}\\x = 20

6 0
3 years ago
Read 2 more answers
Use a property to write an equivalent expression for 12 times (100-5).which property did you use?
Readme [11.4K]
I believe the answer is the distributive property.
7 0
3 years ago
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