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GrogVix [38]
3 years ago
6

Steps to solve1/2 / 2/-5 + (-1/4)​

Mathematics
2 answers:
NARA [144]3 years ago
7 0

Answer:

-3/2

Step-by-step explanation:

this is a answer first u dived then plus

murzikaleks [220]3 years ago
7 0

Answer:

  -3/2

Step-by-step explanation:

(1/2)/(2/-5) +(-1/4) = (1/2)·(-5/2) -(1/4) . . . . invert the denominator and multiply

  = -5/4 -1/4 = -6/4 . . . . . . . . . . . . . . . . . .add the two terms

  = -3/2 . . . . . reduce the fraction

_____

<em>Comment on fraction division</em>

There are two ways to divide fractions. In the end, they amount to the same thing.

<u>One</u>: multiply by the inverse of the denominator:

  (a/b) / (c/d) = (a/b)·(d/c) = (ad)/(bc)

<u>Two</u>: adjust the denominators to be the same, then use the ratio of numerators:

  (a/b) / (c/b) = a/c

__

Here, we could rewrite the fractions as ...

  (5/10) / (-4/10) = -5/4 . . . . using method two

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pleaseee help how do i write an equation in slope-intercept form for the line with slope 1/3 and y-intercept -3?
Montano1993 [528]

Answer:

y=1/3x -3

Step-by-step explanation:

Slope intercept form  is y=mx+b, where m is the <u>slope </u>and b is the <u>y-intercept, </u>or the y-value at which the line intersects the y-axis.

Your slope is 1/3, and your y-int. is -3, so substitute those values in:

y=<u>1/3</u>(x) <u>- 3</u>

8 0
3 years ago
47 x 68 = 3196 Use this information to work out 31.96 ÷ 0.47 =
Zepler [3.9K]
The correct answer for this question is 68.

5 0
3 years ago
Alex ate 4 less the 2 times the slices of pizza that Oliver ate.If Oliver ate 8 slices of pizza how many slices did alex eat?
Fofino [41]

Answer: 12

Step-by-step explanation:  2 times of 8 is 16, but it says 4 less, so you subtract 4 and that equals 12.

 

7 0
2 years ago
X+2&gt;7 write the solution set in interval notation
REY [17]

Answer:

(5, infinitysymbol)

Step-by-step explanation:

First solve the inequality. Subtract 2 from both sides.

x + 2 > 7

x > 5

So that is one way of writing the answer and it is hopefully kind of understandable. X>5 means all the numbers greater (bigger) than 5, forever to infinity.

Interval notation is a way of writing a set or group of numbers. Interval notation uses ( ) parenthesis or [ ] square brackets. Then two numbers go inside with a comma in between. The first number is where the set of numbers start and the second number is where the set ends. You always put parenthesis around the infinity symbol or negative infinity symbol. You only use a square bracket if the inequality symbols have the "or equal to" underline under the > or <.

So x > 5 in interval notation is:

(5, infinitysymbol)

This shows that 5 is not included in the solution; and all the numbers forever bigger than five are solutions as well.

5 0
1 year ago
Which of these expressions have positive values and which have negative values? Drag and drop each expression
marusya05 [52]

Answer:

7-(-4)= Positive

-3+(-2)= Negative

5-8= Negative

-10 +12= Positive

Step-by-step explanation:

4 0
3 years ago
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