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kherson [118]
3 years ago
13

6a+5a=-11 whats the breakdown to get the answers

Mathematics
1 answer:
kenny6666 [7]3 years ago
8 0

add 6a and 5a and get 11a

then:

11a=-11

a=-1


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Lucy’s chocolate bar is 54% cocoa. If the weight of the chocolate bar is 54 grams, how many grams of cocoa does it contain? Roun
Masteriza [31]

Answer:

The chocolate bar contains 29.2 grams of cocoa.

Step-by-step explanation:

Given that Lucy’s chocolate bar is 54% cocoa and the weight of the chocolate bar is 54 grams.

Hence, the amount of cocoa in the chocolate bar is given by

54% of 54 grams

54% percentage means 54/100 = 0.54

Hence, the amount of cocoa in the chocolate bar is

0.54\times54\\=29.16

When rounded to the nearest tenth, 29.16 should be equal to 29.2

Hence, the chocolate bar contains 29.2 grams of cocoa.

4 0
3 years ago
Solve for these letters<br> X<br> Y<br> Z
tester [92]
Z = 140
X = 40
Y = 40
Explanation:
Z and the angle given (140 degrees) are vertical angles, and are therefore congruent
We know that x and y are vertical angles, so they are also congruent to each other
You know that together, the angles have to add up to 360
140 + 140 + x + y = 360
Another way of putting it:
360-280 = 80
Now, we have to divide by two since we need to find x AND y
80/2 = 40
Therefore, your answers for x and y are 40
To double check, you can add up the angles and see if they equal 360
140 + 140 + 40 + 40
280 + 80 = 360
7 0
3 years ago
Use the law of cosines to write an expression equivalent to b
andrezito [222]

Given:

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b=\sqrt{m+n-pq}

To find:

The expression that is equivalent to b.

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According to the Law of Cosines,

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b=\sqrt{m+n-pq}                                ...(ii)

On comparing (i) and (ii), we get

m=a^2

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p=2ac

q=\cos B

Therefore, the required values are m=a^2,n=c^2,p=2ac,q=\cos B.

3 0
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Professor Smith has a total of 250 students,
VLD [36.1K]
The Correct Answer is B
7 0
3 years ago
Read 2 more answers
Plz help and explain plz
Serhud [2]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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