You take 67.8/100×15
10.17
then take 15-10.17 the answer will be the wrongs u got
=4.83
The second step is wrong. What should've been done is to find greatest common factor (gcf) of 1/6 and -2. This is because you cannont add together a number with a variable to a number without a variable. So get the variable by itself by subtracting 1/6 from both sides.
1/5x + 1/6 = -2
___— 1/6_— 1/6
____________
Turn -2 into a fraction and find the gcf of -2 and 6:
1/5x + 1/6 = -2
___— 1/6_— 1/6
____________
1/5x = -2/1 — 1/6 ——> 1/5x = -12/6 — 1/6
1/5x = -13/6
Then divide each side by 1/5 to get the variable by itself; remeber: when dividing a fraction by a fraction, you multiply by the reciprocal.
5/1 • 1/5x = -13/6 • 5/1
x = 65/6
Then, simplify
65/6} 10.83 or 10 83/100
So we know that there are 12 inches in a foot. With this information we can do this:
But if you look you can see that the fraction is not simplified. How can we simplify it? Well, what is the Greatest Common Factor of 9 and 12? Well, the answer is 3! So divide 9 and 12 by three! SO the answer would be:
I hope this helps!
An expansion means the image gets larger, so the scale factor has to be larger than 1.
The sign of the number ( either positive or negative) doesn't affect the scale, so to find the scale for an enlargement you can ignore the negative sign.
This would give you two numbers larger than 1, both -8 and 7 would be the correct scale factors.
Answer:
The total answer is 90.
I hope you have a great day :)
