(-4,0) (3,-5) I don't know if they mean two ordered pairs so I'm pretty sure this is right
First you have to find what 30% of ten is, and then add it to the 10. So how do you find 30 % of 10? In math...
"of" means ×
"is" means =
30% of 10 is
30 % × 10 =
change 30% to a decimal by dividing by 100 ( move the decimal to the left 2 places)
.30 × 10 = 3
So 30% of ten is 3. Now since we are increasing by 30%, we have to add it to the original value, 10.
3 + 10 = 13
So 10 millimeters increased by 30% is
13 millimeters
-5.8 - (-8.4)
When we multiply two negatives they become a positive. In this situation, where there is no other number, you can assume there's basically a 1 in that place.
-5.8 - 1(-8.4) would be just as correct. (If this helps visually clarify anything.)
So we take that -1 and multiply it by that -8.4. Multiplying 1 against anything leaves it the same, so we just need to change the sign. Two negatives make a positive.
-5.8 + 8.4
Now we add these together.
This gives us our final answer of 2.6
#10. Sam: (4, 2); Theater: (-3, 5) #11. Sam is 3 km south and 7 km east of the
theater. #12. (-3, -4) #13. (-3, 0.5) #14. T (0.75, -1.0); U (0.75, 1.25); V (-0.75, 1.25) #15. W(-0.75, -1.0) #16. Janine is describing points that lie on the y-axis. Ordered pairs that lie on the x-axis have a y-coordinate of 0. The origin lies on the x- and y-axis. Any other point with an x-coordinate of 0 lies on the y-axis such as (0, 3).
I hope this helps joseph.. ^^ gl
