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kirza4 [7]
3 years ago
7

What is the answer and how do you get it

Mathematics
2 answers:
Blizzard [7]3 years ago
7 0
You would get $1.55 because 400÷620=1.55
Westkost [7]3 years ago
3 0
You would get $1.55 in exchange for 1 British dollar because 400 divided by 620=1.55
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Through which two points could a line of rotation be placed so that the base of the resulting cylinder will have a radius of 5 c
vagabundo [1.1K]

Answer:

G and H

Step-by-step explanation:

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1). Which events are independent?
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Number 1 is probably D
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Use an algebraic approach to solve the problem.
qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 =  ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0
3 years ago
Y =2/3x + 20<br><br> when x = 21
nydimaria [60]

Answer:

34

Step-by-step explanation:

First we need to do 2/3*21, which equals 14 as 3 and 21 can be simplified to 1 and 7. 7 * 2/1= 14. Then we add the 20 to 14, 20+14= 34

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Answer:

Evaluate each given numbers, expressions or equation.

Check the values or numbers.

Now in order to solve we proceed in the manner

  • Read the problem
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2 years ago
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