2 years ago

2/3 divided by -1 1/3

Mathematics

1 answer:

Lynna [10]2 years ago

8 0

Answer:

- 1/2 (-0.5)

Explanation:

Reduce the expression by cancelling the common factors with division of the fractions.

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Three times a first number decreased by a second number

ki77a [65]

Answer:

The two numbers are 3 and 5

Step-by-step explanation:

$3X-Y=12\\X + 4Y=17\\$

Multiply top equation by 4 to cancel out the Ys

$12X - 4Y = 48\\X + 4Y = 17\\\\13X = 65\\X = 5\\$

Since X =5, we can plug it into either of the top two equations to find out the value of Y

$3(5) - Y = 12\\15 - Y = 12\\Y = 3$

To double check

$3(5) - 3 \\15 - 3\\12\\\\5 + 4(3) \\5 + 12\\17$

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3 years ago

3/4x-4/5=1/2x+1 what is x?

Afina-wow [57]

<span>3/4x - 4/5 = 1/2x + 1

</span>3/4x - 4/5 = 2/4x + 1

3/4x - 2/4x = 1 + 4/5

1/4x = 9/5

x = (9x4) / (5x1)

x = 36/5

x = 7 1/5

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3 years ago

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Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend after-school programs. Of the 200 se

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Answer:

Step-by-step explanation:

For every 40 students, you add 7

Ratio:

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