1 year ago

There were some people on a train

Mathematics

2 answers:

Feliz [49]1 year ago

7 0

I think the answer is 31

quester [9]1 year ago

6 0

You minus 66 by 22 which is 44 than you add 17 which is 61 so the answer is 61

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Solve the system algebraically. 3x - 2y - 1 = 0 y = 5x + 4 What is the solution? {(-9/7,-17/7)} {(9/7,17/7)} {(9/7,-17/7)}

lutik1710 [3]

3x - 2y - 1 = 0
y = 5x + 4

3x - 2(5x + 4) - 1 = 0
3x - 10x - 8 - 1 = 0
-7x - 9 = 0
-7x = 9
x = -9/7

y = 5x + 4
y = 5(-9/7) + 4
y = -45/7 + 4
y = -45/7 + 28/7
y = - 17/7

solution is (-9/7, -17/7)

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3 years ago

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DerKrebs [107]

There are 30 diamonds in total.

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2 years ago

Find the value of this expression if x= -6 and y=1. xy^2/-7

Ahat [919]

(-6)(1)∧⁽2/-7⁾= -6 is the answer
Hope it's right

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2 years ago

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Emma's final grade in her math class is the average (mean) of her 5 chapter tests she took throughout the year. If she received

NikAS [45]

Answer:

Step-by-step explanation:

The mean (or average) of a set of numbers can be found with the following formula:

$Mean = \frac{A_{1} + A_{2} + ... + A_{N}}{N}$

For this problem, we have five numbers, so we add them together and divide by 5:

$Mean = \frac{92 + 85 + 78 + 97 + 88}{5}$

$Mean = \frac{440}{5}$

$Mean = 88$

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3 years ago

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Which mixed number is equivalent to the improper fraction?

o-na [289]

Answer:

B: 2 7/8

Step-by-step explanation:

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2 years ago

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