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timama [110]
3 years ago
14

They are solid crystals at room temperature.

Mathematics
1 answer:
wel3 years ago
7 0

Answer:

"oof"

Step-by-step explanation:

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You are given that<br> 4a-2b = 10<br> (a)<br> Write down the value of<br> 2a - b
Simora [160]

Answer:

2a - b = 5

Step-by-step explanation:

4a - 2b = 10

take out the highest common factor of the left side

2(2a - b) = 10

divide both sides by two

2a - b = 10/2

2a - b = 5

6 0
3 years ago
What is the value of numerical expression 5/8 - 5/12 (3-1/4)+2/3
makvit [3.9K]
It would be 7/48 or the decimal would be 0.15
8 0
3 years ago
Ramona is a saleswoman whose base plus commissions amounted to $52,561 last year. If her base pay was $23,960 and she made $77,3
Ksju [112]

Answer:

37%

Step-by-step explanation:

If Ramona received an overall pay of $52,561 last year, $23,960 of which was base pay, we can first subtract these two numbers to find the amount she made from her sales commission:

$52,561 - $23,960 = $28,601

In order to find her percent commission, we can set up a proportion:

\frac{p}{100}=\frac{28,601}{77,300}, where 'p' is her rate of commission

Cross-multiply and divide:  100(28601) = 77300x or 2,860,100 = 77,300x

Or x = 37%

8 0
3 years ago
Read 2 more answers
Megan made a paper chain that was 4m long. Mason’s chain was 479 cm long. Who’s was the longest? By how much?
Mekhanik [1.2K]

Answer:

Look below

Step-by-step explanation:

Let's start by converting 4 m into cm:

4m * \frac{10^{2}cm}{1m}= 4*10^{2}cm=400cm

Since Megan's chain is only 400 cm long, Mason's chain is longer by 79 cm.

8 0
2 years ago
Read 2 more answers
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅?
Tom [10]

Answer: Option C is correct


Step-by-step explanation:

We know tha tCos(A-B) = cosA cosB + sinAsinB

Plugging A = 180 and B = Ф

cos(180-Ф)= cos180cosФ+sin180sinФ

                  = (-1) cosФ+ (0) sinФ   [ since cos180=-1 and sin180 =0]

                 = -cosФ + 0

                 = -cosФ

Therefore option C is the correct answer.        

6 0
3 years ago
Read 2 more answers
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