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Crazy boy [7]
4 years ago
14

Help please!! Stuck on this question!! ∠ABC is adjacent to ∠CBD. If the m∠ABC=4x+23, m∠CBD=6x+7, and m∠ABD=130°, what is the mea

sure of angle ABC?
Mathematics
1 answer:
Ulleksa [173]4 years ago
3 0

Answer:

63 degrees

Step-by-step explanation:

add 4x + 23 and 6x + 7, then equal that to 130. When you find x, plug it into 4x+23 and get 63.

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1 3/5 cups.

Step-by-step explanation:

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Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will
shusha [124]
Concentration = [ (mass of sugar)/(mass of solution) ] * 100

=> mass of solution = mass of sugar * 100 / concentration

1) concentration 20%

mass of sugar = 0.5 lbs

=> mass of solution = mass of sugar * 100 / concentration = 0.5 lbs * 100 / 20

mass of solution = 2,5 lbs

mass of water = mass of solution - mass of sugar = 2.5 lbs - 0.5 lbs = 2.0 lbs

Answer: she must add 2.0 lbs of water and will obtain 2.5 lbs of syrup

2) concentration 25%

Follow the same procedure.

mass of solution = 0.5 lbs * 100 / 25 =

mass of solution = 2.0 lbs

mass of water = 2.0 lbs - 0.5 lbs = 1.5lbs

Answer: she has to add 1.5 lbs of water and will obtain 2.0 lbs of syrup

3) Same procedure

mass of solution = mass of sugar * 100 / concentration = 0.5 lbs * 100 / 1.5

mass of solution = 33.33 lbs

mass of water = 33.33 lbs - 0.5 lbs = 32.83 lbs

Answer: she has to add 32.83 lbs of water and will obtain 32.83 lbs of syrup
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3 years ago
What is the truth value of (~p V q) ^ r if p is true, q is false, and r is true?
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Answer:

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What is the LCM of 6 and 12?
Tresset [83]
LCM of 6 and 12 is 6 because you reduce the two numbers with 2 and in the end, you get 3. So, you multiply the two numbers and you get 6.

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4 years ago
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