HOW DO U USE A MODEL WHEN USING PERCENTAGES

2 answers:

4 0

You can model a percent many ways. Compare fractions, decimals and percents using area models. You can also use a pi chart, bar graph, and so many other graphs when using percentages. Hope this helps you.

Anni [7]3 years ago

4 0

You make a rectangle and put 100 on the end at the top and the number that your finding the percent of on the bottom at the end and then divide the rectangle into the parts like if your finding 20% of 100 then you divide it by five and add 20 but with harder numbers you just make the percent a decimal then muiltiply it by the number your finding the percent of hope it helps

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Which do the following equations represent? -4x-5y=-4 and 10x-8y=-1

kicyunya [14]

Parallel have same slope
Perpendicular have opposite reciprocal slopes. Ex. 2/3 is slope of one line so the perpendicular line would have slope of -3/2.

Find slopes of these lines.

-4x-5y=-4
-4x+4 =5y
Divide by 5

Y= -4x/5 +4/5

Second line: 10x-8y=-1

10x+1=8y
Divide by 8

10x/8 +1/8 =y

Y= 5x/4 +1/8

So if you look at slope of line 1= -4/5 and line 2 it’s 5/4 so these both are perpendicular.

5 0

3 years ago

Is it true that the order when dividing three real numbers does not effect the answer?

leva [86]

Changing the order may not affect the answer in some situation, however it's not a rule.

7 0

3 years ago

Help me pls, I'm confused

ivann1987 [24]

Answer: A B and C

Step-by-step explanation:

D has an area of 15 and A B and C have an area of 12.