the controlled variables are, timing of adding ice, water used, and amount of sugar. the dependant variables are, daily temperature, and amount of lemon juice. the independent variable is, number of glasses sold. hope it helps

please mark brainlyist

3 0

3 years ago

Which statement describes one feature of chemical changes? They never change a substance’s properties. They change a substance’s

Liono4ka [1.6K]

They change a substance’s identity.

8 0

2 years ago

In the figure below, ΔMNO≅ΔPQR.What is the measure of ∠P? Show your work and explain your reasoning.

Juliette [100K]

Answer:

$\huge\boxed{\sf P = 79.5\°}$

Explanation:

<u>Given that:</u>

ΔMNO ≅ ΔPQR

That means

M ↔ P

N ↔ Q

O ↔ R

So,

∠P ≅ ∠M

Given that P = 3x + 20.4 and M = 5x - 19

3x + 20.4 = 5x - 19

Add 19 to both sides

3x + 20.4 + 19 = 5x

3x + 39.4 = 5x

Subtract 3x to both sides

39.4 = 5x - 3x

39.4 = 2x

2x = 39.4

Divide both sides by 2

x = 19.7

<u>Given that:</u>

P = 3x + 20.4

P = 3(19.7) + 20.4 (x = 19.7)

P = 59.1 + 20.4

P = 79.5°

$\rule[225]{225}{2}$

Hope this helped!

8 0

2 years ago

Which of the following is used as evidence to show changes in living organisms throughout geologic time?

Vadim26 [7]

I believe your answer would be:

A. Fossils.

Explanation:

Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.

Hope I helped, good luck! =)

4 0

3 years ago

Read 2 more answers