It's 1.38.
You need to add the decimal places, and you get three. Since 0.92 doesn't have a front, you only go two decimal places to the right. Don't quote me on this, though.
Remove the decimal place for 1.5 to 15. 15 x 0.92 = 13.8. Move one to the left, and you get 1.38.
When you have numbers like 1.5 x 2.3, just remove the decimal places, write down how far they are from the dot (one for both in this example) and add those. You get two. Do 15 * 23 and you get 345. This goes two decimal places to the left, getting 3.45.
Hope this helps.
Answer: -15
Solving Steps:
x + 1 / 5 = 2 + 3 (x - 1) / 10
x +1 / 5 = 2 + 3x - 3 / 10
2 (x + 1) = 20 + 3x - 3
2x + 2 = 17 + 3x
2x - 3x = 17 - 2
-x = 15
x = -15
Divide 4.72 by 8
each battery costs $0.59
<span>If two lines are parallel, they do not intersect -- this one is true. the definition of parallel lines prevents these lines from crossing one another, because at that point they would no longer be parallel. parallel lines never touch.
If two lines do not intersect, then they are parallel -- not necessarily. skew lines are the exception here. you probably won't touch on it at your current level of math, but lines exist in higher dimensions than the second (third dimension, fourth dimension, etc) that prevent this from being necessarily true. if your class is ONLY related to two-dimensional geometry and your teacher doesn't want you to consider higher dimensions, then there's no reason to use this answer; the statement would be true.
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Lets write an equation for each guy's shots and score:
4A + 2B = 18
3A + 3B = 21
To solve we multiply the first equation by -3 and the second by 2:
-12A - 6B = -54
6A + 6B = 42
--------------------
-12A + 0 = -12
A = 1
to find B we substitute in the first equation:
<span>4A + 2B = 18
</span><span>4(1) + 2B = 18
</span><span>4 + 2B = 18
</span>2B = 14
B = 7
therefore there were given 7 points in an arrow in B